This has been a missing key component of my GTD implementation. I wasn't initially convinced I needed to maintain the project list, but listening to the FAST Cds has convinced me of their importance.
I have started to put a list together, but as I did this I wondered if there was any benefit to grouping them under areas of focus - I also use Tony Robbins TIme of Your Life concepts (Categories of Improvement in his case which are in turn similar to Covey's roles). At least in terms of making the list it helps me brain dump ideas under the same category, but more importantly it immediately connects me to the purpose of the project and where it sits in relation to everything else.
Can anyone see a downside to listing projects under their areas of focus?
What other best practice can people recommend for maintaining their project list.