I love checklists, but I always have trouble sharing that love with other people. Luckily, there's now a great article on checklists on lifehacker. Now I'm going to refer people to that instead of David Allen's book or my own vague fumblings about life being too short to think about boring stuff.
If you'd like to see one I made, check out my checklist on how to release Twisted (a free software project that I sometimes help out).