1. To change the order of your list, tap-and-hold an item and move it around.
  2. To change your bulleted list to a numbered list, or vice versa, just toggle between the two gray boxed options at the top.
  3. Search works for both lists and users. Especially good for finding useful lists - "books," "movies," "restaurants," etc.
  4. If you want to take an item from someone else's list and save it for one of yours, double tap it. This will be attributed to the original lister in your own list.