I think perhaps my problems come into this category, I have several Client Cases on the go, originally when I began GTD I classed each Client Case as a project but found this to be unsatisfactory. Following what I had read on this forum I decided that each Case File should really be 20,000ft area of focus and then within each case I could have several projects on the go at the same time.
This appears to be working OK except that now in my weekly review I need to review each Case File then my projects then my next actions list, in effect I have three lists to review. The problem arises where I can on occasions have trouble linking a project to a particular case because I do not have a cross reference system. If anyone has devised such a system of cross referencing then I would love to hear how they do this.
I use outlook with the GTD add in.