There are many ways to approach the new year and I’ve probably tried them all. In an attempt to redress the damage done by the wilder excesses of Christmases past, I’ve taken myself off to spas, forsworn liqueur and eschewed any food beginning with a ‘c'(chocolate, carbohydrate, cream, cheese – you get the idea). But harsh regimes have a terrible boomerang effect. If you are denied something, it will quickly become an obsession (if you don’t believe me, just ask Ken Livingstone).