Chocolate was my last hardest thing to give up (right after soda). I still sneak some every once in a while, but maybe only once a month.
My friend actually helps me tremendously with keeping on my diet. We have a deal - if I eat something that's going to hurt me, he drinks some fruity alcohol drink that's going to hurt his stomach. So far, it hasn't happened since I've been a good girl (or I sneak things when not around him), but it is definitly helping me keep on track and think twice before eating something like chocolate.