First, I will say that GTD seems to be the best system going (I'd call myself a recovering Covey-ite)--the book, GTD, was initially a challenge to read , but the Barnes and Noble course made it more accessible, and the FAST tapes are a help as well. My "in" is a backlog of papers and a some objects: paper work pertaining to single actions, essential documents that have been very hard to retrieve before this system, and reference material for 50 projects, and some memorabilia (to be framed or used in scrapbooks) and needed items, and trash that I have been dumping! As I have worked to empty "in", I have created nearly 150 folders in my A to Z and I have many cubic feet of "in" yet to do. I seem to burn out after about 2 hours of sorting out, filing , listing, and doing 2 minute tasks (and throwing away). It also takes me about an hour to empty the daily "in" (office matters, mail at home, my kids' papers from school etc.) but I expect that this will shorten. Should I being doing weekly reviews before "in" is empty? I keep trying to set a time to do a weekly review but have only gotten to it once (it was only a review of the exisitng lists but it was helpful. What do you suggest to people who are working on backlog and have constant influx? I would appreciate your thoughts--whether your are the GTD professionals or experienced users or just anyone who has succeedeed with this type of challenge. In this realm, let's say you see an in tray that is 1 foot high--how long do you estimate it takes to get it nto existing A to Z folders?