diff --git a/css/styles.css b/css/styles.css
index 4fa700d..04170f3 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -1624,12 +1624,54 @@ html, body {
     border-bottom: 1px solid var(--border-color, #e0e0e0);
 }
 
+.wish-list-group-title {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
 .wish-list-group-name {
     font-weight: 700;
     font-size: 1rem;
     color: var(--text-primary, #333);
 }
 
+.wish-list-group-counter {
+    font-size: 0.75rem;
+    font-weight: 600;
+    color: var(--text-secondary, #666);
+    background: var(--bg-tertiary, #e8e8e8);
+    padding: 0.15rem 0.5rem;
+    border-radius: 999px;
+    white-space: nowrap;
+}
+
+.wish-list-collapse-btn {
+    background: none;
+    border: none;
+    padding: 0.15rem 0.35rem;
+    cursor: pointer;
+    color: var(--text-secondary, #666);
+    font-size: 0.75rem;
+    line-height: 1;
+    border-radius: 4px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.wish-list-collapse-btn:hover {
+    background: var(--border-color, #e0e0e0);
+}
+
+.wish-list-group.collapsed .wish-list {
+    display: none;
+}
+
+.wish-list-group.collapsed .wish-list-group-header {
+    border-bottom: none;
+}
+
 .wish-list-group-actions {
     display: flex;
     gap: 0.5rem;
diff --git a/src/app.ts b/src/app.ts
index a112a84..41ebee1 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -28,6 +28,7 @@ class TaskManager {
     currentEditingNoteId: string | null = null;
     currentEditingShoppingItemId: string | null = null;
     dragSrcWishId: string | null = null;
+    expandedWishLists: Set<string> = new Set();
     selectedDate: Date = new Date();
     tasksExpanded: boolean = false;
     hideCompleted: boolean = false;
@@ -1889,13 +1890,14 @@ class TaskManager {
         // Render each named list group
         lists.forEach(list => {
             const listItems = allItems.filter(i => i.listId === list.id);
-            html += this.renderWishListGroup(list.id, list.name, listItems, true);
+            const isExpanded = this.expandedWishLists.has(list.id);
+            html += this.renderWishListGroup(list.id, list.name, listItems, true, isExpanded);
         });
 
         // Render uncategorized items (no listId or listId is null)
         const uncategorized = allItems.filter(i => !i.listId);
         if (uncategorized.length > 0 || lists.length === 0) {
-            html += this.renderWishListGroup(null, 'Uncategorized', uncategorized, false);
+            html += this.renderWishListGroup(null, 'Uncategorized', uncategorized, false, true);
         }
 
         container.innerHTML = html;
@@ -1914,6 +1916,19 @@ class TaskManager {
                 if (editBtn) {
                     editBtn.addEventListener('click', () => this.openWishListModal(list.id));
                 }
+                const collapseBtn = groupEl.querySelector<HTMLElement>('.wish-list-collapse-btn');
+                if (collapseBtn) {
+                    collapseBtn.addEventListener('click', () => {
+                        const isNowCollapsed = groupEl.classList.toggle('collapsed');
+                        if (isNowCollapsed) {
+                            this.expandedWishLists.delete(list.id);
+                        } else {
+                            this.expandedWishLists.add(list.id);
+                        }
+                        const icon = collapseBtn.querySelector<HTMLElement>('.wish-list-collapse-icon');
+                        if (icon) icon.textContent = isNowCollapsed ? '▶' : '▼';
+                    });
+                }
             }
         });
 
@@ -1929,18 +1944,29 @@ class TaskManager {
         }
     }
 
-    renderWishListGroup(listId: string | null, name: string, items: WishItem[], hasEditBtn: boolean): string {
+    renderWishListGroup(listId: string | null, name: string, items: WishItem[], hasEditBtn: boolean, isExpanded: boolean = true): string {
         const dataAttr = listId ? `data-list-id="${listId}"` : 'data-list-id="uncategorized"';
         const editBtnHtml = hasEditBtn
             ? `<button class="btn btn-secondary wish-list-edit-btn" title="Edit list">Edit</button>`
             : '';
+        const unpurchasedCount = items.filter(i => !i.completed).length;
+        const counterHtml = `<span class="wish-list-group-counter">${unpurchasedCount} remaining</span>`;
+        const collapsedClass = !isExpanded ? ' collapsed' : '';
+        const toggleIcon = isExpanded ? '▼' : '▶';
+        const toggleBtnHtml = hasEditBtn
+            ? `<button class="btn wish-list-collapse-btn" title="Toggle collapse"><span class="wish-list-collapse-icon">${toggleIcon}</span></button>`
+            : '';
         const itemsHtml = items.length > 0
             ? items.map(item => this.renderWishItem(item)).join('')
             : `<p class="empty-state wish-list-empty">No items yet. Click "+ Add" to add one.</p>`;
         return `
-            <div class="wish-list-group" ${dataAttr}>
+            <div class="wish-list-group${collapsedClass}" ${dataAttr}>
                 <div class="wish-list-group-header">
-                    <span class="wish-list-group-name">${name}</span>
+                    <div class="wish-list-group-title">
+                        ${toggleBtnHtml}
+                        <span class="wish-list-group-name">${name}</span>
+                        ${counterHtml}
+                    </div>
                     <div class="wish-list-group-actions">
                         ${editBtnHtml}
                         <button class="btn btn-primary wish-list-group-add-btn">+ Add</button>