If you want to know more about how habits form, and how to break the cycle of a bad habit, check out The Power of Habit by Charles Duhigg. B suggested I read it over Christmas break (what was she trying to tell me?!?) and while it's no cure-all, it did open my eyes to some of the things we do unconsciously, without thinking, without paying attention.
But speaking of resolutions, a friend of mine posted the following on her facebook page, which she got from Avivagen Animal Health, a Canadian pet company, which in turn got it from rockpapercynic. Just had to share.