I am sure David Allen did not include it in his initial version of “Get Things Done” but, as far as I am concerned, it must be included from now on.
Ok, here is the new principle:
Abstain from Twitter or Friendfeed or Google Reader for so long as needed to see your TODO list drop down to one third.
If ”one third’ is still above ‘ five items’, abstain till it gets down to five.
I am still trying it, by the way 🙂