> "Whenever I make a todo list, I forget it and find it weeks later with some items completed and the rest have turned unimportant."

I empathize... However, with the introduction of Apple Reminders app on the Mac, and it's seamless, icloudy, automagical sync across iPhone / iPad, plus geofencing, I have found that a) my list is always "in my face" and b) it's actually proving quite effective... mostly because of "a".

This might sound like hyperbole, but I think Reminders on iOS/Mac (ok, and Evernote) is the single best thing to hit productivity in a long, long time.

Edit: I also found that having specific instructions plus context in the task item goes a long way in making lists actionable and not a chore... a la GTD.. for example: "@home - call AT&T at 555-1212 and increase broadband bandwidth" or... "@work - read rev C of PRD and send comments to Bob""