diff --git a/public/app.js b/public/app.js
index c1a6890..336bd3f 100644
--- a/public/app.js
+++ b/public/app.js
@@ -67,6 +67,15 @@ document.addEventListener('DOMContentLoaded', () => {
     // State
     let todos = {};
     let currentList = 'List 1';
+    let saveTimeout;
+
+    // Drag-and-drop debouncer
+    function queueSaveTodos() {
+        clearTimeout(saveTimeout);
+        saveTimeout = setTimeout(() => {
+            saveTodos();
+        }, 300);
+    }
 
     // List Management
     function initializeLists(data) {
@@ -438,7 +447,7 @@ document.addEventListener('DOMContentLoaded', () => {
                             return activeTodos.find(t => t.text === item.getAttribute('data-todo-id'));
                         });
                         todos[currentList] = [...newOrder, ...completedTodos];
-                        saveTodos();
+                        queueSaveTodos();
                     }
                 }
             });