I've recently started studying Getting Things Done (aka "GTD"), and so far it's been interesting, though I haven't totally drunk the Kool-Aid yet. One of the main points of GTD is that you need to collect everything you want to get done into some kind of system. Initially I felt vindicated since I've been using my Palm PDA and Outlook to manage my to-do items for years, and sometimes I felt I was being too geeky by capturing everything into it. After reading about GTD, I'm finding that I haven't been capturing enough things, nor at the correct level of detail, and not in a sufficiently defined way. There are many other GTD things I haven't been doing in my own system, but one thing at a time.