Honestly? 1-2 hours a day, on a good day. Plenty of days with none. It's nearly 2 months til my first exam (31st may), motivation levels aren't that high. I'm too lazy to write proper revision notes, but I've started on chemistry formulae and definitions. You can't start past papers yet (or that's what I tell myself) or you'll have run out by exam time! I will start on further maths papers soon though, because I rekcon I'll need to go through them all twice to have any hope of a decent mark!