I would seriously advise that you revise. Hey, I rhymed
Yeah, but seriously though, do some revision. I didn't revise as much as I should have done for my first exam this year, and it was pretty damn tough. I've learned my lesson and I've done revision now enough to see me conquer my exams, with three to go out of five (just got back from one now). If you must procrastinate I usually do on the Escapist (when doing coursework), but seriously though, don't. Just revise. You'll be better off in the long run (short run too ;D).