I found that implementing GTD at work could be done in bursts of a few hours here and there. At home though, where it was most needed, it seemed overwhelming. I collected all my "in" into two washing up bowls as they were larger than any baskets I had, and they were overflowing. They sat for ages because I decided I wanted to do it all at once and was waiting for a block of time and a few days ago I felt I had re-read the book so often it was in my very pores and I got stuck in. It took 10 hours! but it was some of the most satisfying work I have done. Now I at least I know exactly what I COULD be doing if I choose to.;) The amazing thing, to me, was that my lists are no where near as long as I thought they were going to be. Looking at the bowls I envisaged a long and daunting project list but most of it was actually next actioned or filed as reference.I was so inspired I even blasted through a couple of projects over the weekend. If I could pat myself on the back I would. :)