I'm definitely curious to see what people say about PDAs. For a while now I've been wondering if one would help me. I don't carry a notebook around or calendar, so that's one thing I could use it for. But the motivation for getting one is, even more important than listing what books and DVDs I already own and which ones I want to get, is recording information about restaurants and stores: Hours, location, phone number, and what's good and what's bad. For example, "this is a good sushi restaurant, but avoid the boat: I don't like the selection".