I think taking it easy for the week before the month of hard core studying is a good idea. I didn't do that last time and I burned out two weeks before the actual exam so I'm gonna try to follow EK's plan and take an easy week.
I think the idea is to make you feel guilty for not studying as much so you throw yourself in full-force the month before the exam.
Normally I don't take full days off personally because it whacks me out of the study mode and I end up taking 3 days off instead of 1. What I do is just take a practice FL on either Sat or Sun (which usually lasts til 2) and not do anything for the rest of the day. Different strokes for different folks.