I use a combination of 4 tools to manage my life:
1) Redmine (numerous projects. every desired action item is captured here)
2) iTouch notes. I have a todo for this week note and todo next week note. The touch is always with me, and I capture things there before moving them to redmine if I’m not on a wifi connection. I also capture things like grocery list, errands etc. Things that don’t need to be tracked beyond doing them.
I also have a note title hot sheet, and I take random notes here.
3)Blog posts. I post high level thoughts about what I want to get done that month.
4)@ai folder in my e-mail. Things that come in via e-mail that need a response via e-mail. I have two @ai folders. One off my main inbox and one off my jobs folder.
That’s about it. Pretty simple and straight forward. It works for me.