I've been using GTD for a few months now and have an idea about Waiting For items. I'm finding that my Waiting For list is sort of a black hole, although I do check it during my weekly review. I'm considering mostly doing away with the category and making things more action-oriented by deciding how long I have to wait before doing something. I will then put a call-again task in my tickler file for that date. That way I don't have to check the Waiting For list to see who I need to call and I won't have to spend my time wondering if I need to call each person back every time I go through the Waiting Fors. Is there a reason I'm not thinking of for using Waiting Fors?