I actually have to catch up on a whole one and a half term's worth of work as once again I was too lazy to go to any lectures this second term. But if I did it in two weeks last year and got decent results I'm hoping giving it three weeks this year will get me even better results. The key is to relax all year round and do no work, then having to work like a dog in the last two weeks is nothing as you're all refreshed and actually want to do work to stop you going boredom mental.