I think it's interesting that the email Inbox really seems to get top priority if you want to keep it empty. I realize that the priority is just on dealing with it, not necessarily doing everything as it comes in, but it is a fine line.
And I have noticed a tendency on my part to lounge around a little bit when the Inbox is empty since with all that other stuff hidden away on different lists and folders, I feel like I am in better shape than I really am.
I think I am getting it slowly, though. Man, knocking off next actions feels great! It is like positive feedback, since doing them energizes you to do more and sooner or later you are out of stuff! Hooray!!