Undo button or Menu item for undo. It is too easy to accidentally trash an item and too hard to find the trash 'folder' (a secondary related improvement). Trash could be in the list of passwords when it has content. or Trash could be in the categories. It shouldn't take more than 2 seconds to undo an accidental deletion (and perhaps other undo options besides deletion - such as undo pastes - could make things more efficient as well.