diff --git a/RebornToolbox/Common/MainWindow.cs b/RebornToolbox/Common/MainWindow.cs
index b2c8dbb..c2c0067 100644
--- a/RebornToolbox/Common/MainWindow.cs
+++ b/RebornToolbox/Common/MainWindow.cs
@@ -52,8 +52,15 @@ public override void Draw()
                 Plugin.Configuration.ShoppingListConfig.RemoveQuantityAutomatically = inventoryCheck;
                 Plugin.Configuration.SaveConfig();
             }
-
             ImGuiEx.Tooltip("Automatically subtract from needed quantity when items are added to your inventory.");
+
+            var allChars = Plugin.Configuration.ShoppingListConfig.AllCharactersInventory;
+            if (ImGui.Checkbox("Consider Inventory Counts from All Characters", ref allChars))
+            {
+                Plugin.Configuration.ShoppingListConfig.AllCharactersInventory = allChars;
+                Plugin.Configuration.SaveConfig();
+            }
+            ImGuiEx.Tooltip("Whether or not to pull items from every character's inventory using Allagan Tools");
         }
 
         ImGui.Unindent();
diff --git a/RebornToolbox/Features/MBShoppingList/MBShoppingList.Config.cs b/RebornToolbox/Features/MBShoppingList/MBShoppingList.Config.cs
index 898112e..89ebc68 100644
--- a/RebornToolbox/Features/MBShoppingList/MBShoppingList.Config.cs
+++ b/RebornToolbox/Features/MBShoppingList/MBShoppingList.Config.cs
@@ -10,4 +10,5 @@ public class MBShoppingList_Config
     public int LifeStreamTimeout { get; set; } = 300;
     public bool UseVnavPathing { get; set; } = false;
     public bool RemoveQuantityAutomatically { get; set; } = false;
+    public bool AllCharactersInventory { get; set; } = false;
 }
\ No newline at end of file
diff --git a/RebornToolbox/Features/MBShoppingList/Models/ShoppingListItem.cs b/RebornToolbox/Features/MBShoppingList/Models/ShoppingListItem.cs
index 82928c9..ef9db54 100644
--- a/RebornToolbox/Features/MBShoppingList/Models/ShoppingListItem.cs
+++ b/RebornToolbox/Features/MBShoppingList/Models/ShoppingListItem.cs
@@ -49,7 +49,26 @@ internal void OnDeserializedMethod(StreamingContext context)
     public bool IsMarketable { get; private set; }
     public long Quantity { get; set; }
 
-    public long InventoryCount => AllaganTools_IPCSubscriber.IsInitialized() ? AllaganTools_IPCSubscriber.ItemCountOwned(ItemId, false, ValidInventoryTypes.Select(i => (uint)i).ToArray()) : 0;
+    [Newtonsoft.Json.JsonIgnore]
+    private DateTime _inventoryLastUpdated = DateTime.MinValue;
+
+    [Newtonsoft.Json.JsonIgnore]
+    private long _inventoryCount = 0;
+
+    [Newtonsoft.Json.JsonIgnore]
+    public long InventoryCount
+    {
+        get
+        {
+            if (DateTime.Now.Subtract(_inventoryLastUpdated).TotalSeconds > 1)
+            {
+                _inventoryLastUpdated = DateTime.Now;
+                _inventoryCount = AllaganTools_IPCSubscriber.IsInitialized() ? AllaganTools_IPCSubscriber.ItemCountOwned(ItemId, !Plugin.Configuration.ShoppingListConfig.AllCharactersInventory, ValidInventoryTypes.Select(i => (uint)i).ToArray()) : 0;
+            }
+
+            return _inventoryCount;
+        }
+    }
 
     [Newtonsoft.Json.JsonIgnore]
     private List<InventoryType> ValidInventoryTypes = new List<InventoryType>()