What should I give up for Lent?

Last year, I successfully made it through the whole of Lent without a drop of booze passing my lips.

Well, that's not entirely true - if memory serves I did make an exception on my birthday, which happened to fall a few days before Easter Sunday last year. But other than that one perfectly reasonable exception, I was a good boy.

This year, I can't decide what to give up. Leona's going to abstain from coffee for the full 40 days. Should I follow suit, or is there something else I ought to try...? All suggestions welcome.