diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Belongings.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Belongings.java
index e395edf33..60210fba0 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Belongings.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Belongings.java
@@ -41,8 +41,6 @@ import java.util.Iterator;
 
 public class Belongings implements Iterable<Item> {
 
-	public static final int BACKPACK_SIZE	= 20;
-	
 	private Hero owner;
 	
 	public Bag backpack;
@@ -55,10 +53,20 @@ public class Belongings implements Iterable<Item> {
 	public Belongings( Hero owner ) {
 		this.owner = owner;
 		
-		backpack = new Bag() {{
-			name = Messages.get(Bag.class, "name");
-			size = BACKPACK_SIZE;
-		}};
+		backpack = new Bag() {
+			{
+				name = Messages.get(Bag.class, "name");
+			}
+			public int capacity(){
+				int cap = super.capacity();
+				for (Item item : items){
+					if (item instanceof Bag){
+						cap++;
+					}
+				}
+				return cap;
+			}
+		};
 		backpack.owner = owner;
 	}
 	
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
index 75e4a63da..7907c8318 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
@@ -170,20 +170,25 @@ public class Item implements Bundlable {
 	}
 	
 	public boolean collect( Bag container ) {
-		
+
 		ArrayList<Item> items = container.items;
-		
-		if (items.contains( this )) {
-			return true;
-		}
-		
+
 		for (Item item:items) {
-			if (item instanceof Bag && ((Bag)item).grab( this )) {
+			if (item instanceof Bag && ((Bag)item).canHold( this )) {
 				if (collect( (Bag)item )){
 					return true;
 				}
 			}
 		}
+
+		if (!container.canHold(this)){
+			GLog.n( Messages.get(Item.class, "pack_full", container.name()) );
+			return false;
+		}
+
+		if (items.contains( this )) {
+			return true;
+		}
 		
 		if (stackable) {
 			for (Item item:items) {
@@ -194,25 +199,17 @@ public class Item implements Bundlable {
 				}
 			}
 		}
-		
-		if (items.size() < container.size) {
-			
-			if (Dungeon.hero != null && Dungeon.hero.isAlive()) {
-				Badges.validateItemLevelAquired( this );
-			}
-			
-			items.add( this );
-			Dungeon.quickslot.replacePlaceholder(this);
-			updateQuickslot();
-			Collections.sort( items, itemComparator );
-			return true;
-			
-		} else {
-			
-			GLog.n( Messages.get(Item.class, "pack_full", container.name()) );
-			return false;
-			
+
+		if (Dungeon.hero != null && Dungeon.hero.isAlive()) {
+			Badges.validateItemLevelAquired( this );
 		}
+
+		items.add( this );
+		Dungeon.quickslot.replacePlaceholder(this);
+		updateQuickslot();
+		Collections.sort( items, itemComparator );
+		return true;
+
 	}
 	
 	public boolean collect() {
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/KindofMisc.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/KindofMisc.java
index 8615c406f..cc9e40a1c 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/KindofMisc.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/KindofMisc.java
@@ -21,6 +21,7 @@
 
 package com.shatteredpixel.shatteredpixeldungeon.items;
 
+import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
 import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
 import com.shatteredpixel.shatteredpixeldungeon.messages.Messages;
 import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
@@ -50,13 +51,14 @@ public abstract class KindofMisc extends EquipableItem {
 						protected void onSelect(int index) {
 
 							KindofMisc equipped = (index == 0 ? m1 : m2);
-							//temporarily give 1 extra backpack spot to support swapping with a full inventory
-							hero.belongings.backpack.size++;
+							int slot = Dungeon.quickslot.getSlot(KindofMisc.this);
+							detach(hero.belongings.backpack);
 							if (equipped.doUnequip(hero, true, false)) {
-								//fully re-execute rather than just call doEquip as we want to preserve quickslot
-								execute(hero, AC_EQUIP);
+								doEquip(hero);
+							} else {
+								collect();
 							}
-							hero.belongings.backpack.size--;
+							if (slot != -1) Dungeon.quickslot.setSlot(slot, KindofMisc.this);
 						}
 					});
 
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/Bag.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/Bag.java
index bef696166..6dd286a1c 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/Bag.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/Bag.java
@@ -49,8 +49,10 @@ public class Bag extends Item implements Iterable<Item> {
 	public Char owner;
 	
 	public ArrayList<Item> items = new ArrayList<>();
-	
-	public int size = 1;
+
+	public int capacity(){
+		return 20; // default container size
+	}
 	
 	@Override
 	public void execute( Hero hero, String action ) {
@@ -68,7 +70,7 @@ public class Bag extends Item implements Iterable<Item> {
 	public boolean collect( Bag container ) {
 
 		for (Item item : container.items.toArray( new Item[0] )) {
-			if (grab( item )) {
+			if (canHold( item )) {
 				int slot = Dungeon.quickslot.getSlot(item);
 				item.detachAll(container);
 				if (!item.collect(this)) {
@@ -146,8 +148,17 @@ public class Bag extends Item implements Iterable<Item> {
 		}
 		return false;
 	}
-	
-	public boolean grab( Item item ) {
+
+	public boolean canHold( Item item ){
+		if (items.contains(item) || item instanceof Bag || items.size() < capacity()){
+			return true;
+		} else {
+			for (Item i : items) {
+				if (item.isSimilar( i )) {
+					return true;
+				}
+			}
+		}
 		return false;
 	}
 
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/MagicalHolster.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/MagicalHolster.java
index f3229d88e..516037d26 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/MagicalHolster.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/MagicalHolster.java
@@ -31,16 +31,18 @@ public class MagicalHolster extends Bag {
 
 	{
 		image = ItemSpriteSheet.HOLSTER;
-		
-		size = 20;
 	}
 
 	public static final float HOLSTER_SCALE_FACTOR = 0.85f;
 	public static final float HOLSTER_DURABILITY_FACTOR = 1.2f;
 	
 	@Override
-	public boolean grab( Item item ) {
-		return item instanceof Wand || item instanceof MissileWeapon || item instanceof Bomb;
+	public boolean canHold( Item item ) {
+		if (item instanceof Wand || item instanceof MissileWeapon || item instanceof Bomb){
+			return super.canHold(item);
+		} else {
+			return false;
+		}
 	}
 	
 	@Override
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/PotionBandolier.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/PotionBandolier.java
index 6aa4340f2..de05b8a98 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/PotionBandolier.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/PotionBandolier.java
@@ -22,20 +22,25 @@
 package com.shatteredpixel.shatteredpixeldungeon.items.bags;
 
 import com.shatteredpixel.shatteredpixeldungeon.items.Item;
+import com.shatteredpixel.shatteredpixeldungeon.items.bombs.Bomb;
 import com.shatteredpixel.shatteredpixeldungeon.items.potions.Potion;
+import com.shatteredpixel.shatteredpixeldungeon.items.wands.Wand;
+import com.shatteredpixel.shatteredpixeldungeon.items.weapon.missiles.MissileWeapon;
 import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
 
 public class PotionBandolier extends Bag {
 
 	{
 		image = ItemSpriteSheet.BANDOLIER;
-
-		size = 20;
 	}
 
 	@Override
-	public boolean grab( Item item ) {
-		return item instanceof Potion;
+	public boolean canHold( Item item ) {
+		if (item instanceof Potion){
+			return super.canHold(item);
+		} else {
+			return false;
+		}
 	}
 
 	@Override
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/ScrollHolder.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/ScrollHolder.java
index 3315b9c1a..8dff4122c 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/ScrollHolder.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/ScrollHolder.java
@@ -22,22 +22,27 @@
 package com.shatteredpixel.shatteredpixeldungeon.items.bags;
 
 import com.shatteredpixel.shatteredpixeldungeon.items.Item;
+import com.shatteredpixel.shatteredpixeldungeon.items.bombs.Bomb;
 import com.shatteredpixel.shatteredpixeldungeon.items.scrolls.Scroll;
 import com.shatteredpixel.shatteredpixeldungeon.items.spells.BeaconOfReturning;
 import com.shatteredpixel.shatteredpixeldungeon.items.spells.Spell;
+import com.shatteredpixel.shatteredpixeldungeon.items.wands.Wand;
+import com.shatteredpixel.shatteredpixeldungeon.items.weapon.missiles.MissileWeapon;
 import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
 
 public class ScrollHolder extends Bag {
 
 	{
 		image = ItemSpriteSheet.HOLDER;
-		
-		size = 20;
 	}
-	
+
 	@Override
-	public boolean grab( Item item ) {
-		return item instanceof Scroll || item instanceof Spell;
+	public boolean canHold( Item item ) {
+		if (item instanceof Scroll || item instanceof Spell){
+			return super.canHold(item);
+		} else {
+			return false;
+		}
 	}
 	
 	@Override
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/VelvetPouch.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/VelvetPouch.java
index c955e8c66..6eeac1333 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/VelvetPouch.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/bags/VelvetPouch.java
@@ -24,6 +24,8 @@ package com.shatteredpixel.shatteredpixeldungeon.items.bags;
 import com.shatteredpixel.shatteredpixeldungeon.items.Item;
 import com.shatteredpixel.shatteredpixeldungeon.items.quest.GooBlob;
 import com.shatteredpixel.shatteredpixeldungeon.items.quest.MetalShard;
+import com.shatteredpixel.shatteredpixeldungeon.items.scrolls.Scroll;
+import com.shatteredpixel.shatteredpixeldungeon.items.spells.Spell;
 import com.shatteredpixel.shatteredpixeldungeon.items.stones.Runestone;
 import com.shatteredpixel.shatteredpixeldungeon.plants.Plant;
 import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
@@ -32,14 +34,16 @@ public class VelvetPouch extends Bag {
 
 	{
 		image = ItemSpriteSheet.POUCH;
-		
-		size = 20;
 	}
-	
+
 	@Override
-	public boolean grab( Item item ) {
-		return item instanceof Plant.Seed || item instanceof Runestone
-				|| item instanceof GooBlob || item instanceof MetalShard;
+	public boolean canHold( Item item ) {
+		if (item instanceof Plant.Seed || item instanceof Runestone
+				|| item instanceof GooBlob || item instanceof MetalShard){
+			return super.canHold(item);
+		} else {
+			return false;
+		}
 	}
 	
 	@Override
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/ShopRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/ShopRoom.java
index a90b119c9..bbe4e5e93 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/ShopRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/special/ShopRoom.java
@@ -292,7 +292,7 @@ public class ShopRoom extends SpecialRoom {
 		//count up items in the main bag
 		for (Item item : pack.backpack.items) {
 			for (Bag bag : bags.keySet()){
-				if (bag.grab(item)){
+				if (bag.canHold(item)){
 					bags.put(bag, bags.get(bag)+1);
 				}
 			}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/windows/WndBag.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/windows/WndBag.java
index 2c3ccbb95..2c0c25db7 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/windows/WndBag.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/windows/WndBag.java
@@ -109,7 +109,6 @@ public class WndBag extends WndTabbed {
 	private String title;
 
 	private int nCols;
-	private int nRows;
 
 	protected int count;
 	protected int col;
@@ -135,15 +134,14 @@ public class WndBag extends WndTabbed {
 		lastBag = bag;
 
 		nCols = PixelScene.landscape() ? COLS_L : COLS_P;
-		nRows = (int)Math.ceil((Belongings.BACKPACK_SIZE + 4) / (float)nCols);
-
 		int slotsWidth = SLOT_WIDTH * nCols + SLOT_MARGIN * (nCols - 1);
-		int slotsHeight = SLOT_HEIGHT * nRows + SLOT_MARGIN * (nRows - 1);
 
 		placeTitle( bag, slotsWidth );
 		
 		placeItems( bag );
 
+		int slotsHeight = SLOT_HEIGHT * row + SLOT_MARGIN * (row - 1);
+
 		resize( slotsWidth, slotsHeight + TITLE_HEIGHT );
 
 		Belongings stuff = Dungeon.hero.belongings;
@@ -229,12 +227,16 @@ public class WndBag extends WndTabbed {
 		}
 		
 		// Free Space
-		while ((count - 4) < container.size) {
+		while ((count - 4) < container.capacity()) {
 			placeItem( null );
 		}
 	}
 	
 	protected void placeItem( final Item item ) {
+
+		count++;
+
+		if (item instanceof Bag) return;
 		
 		int x = col * (SLOT_WIDTH + SLOT_MARGIN);
 		int y = TITLE_HEIGHT + row * (SLOT_HEIGHT + SLOT_MARGIN);
@@ -245,8 +247,7 @@ public class WndBag extends WndTabbed {
 			col = 0;
 			row++;
 		}
-		
-		count++;
+
 	}
 
 	@Override