I use paper for my daily to-do. I take a 3x5 index card and write what I need to do that day. If I can't fit it on the card, I know I don't have a chance to ge

I use paper for my daily to-do. I take a 3x5 index card and write what I need to do that day. If I can't fit it on the card, I know I don't have a chance to get it all done; in this way it's self-limiting.