I think a food journal is an excellent idea. Make sure you write down EVERYTHING you eat, even if it is one Cheerio! Also, keep track of the calories that go along with it. This helped me get back into shape after childbirth. You won't eat just a handful if you have to take the time to figure out how many calories, fat, carbs, fiber and protein are in the handful. Besides, who wants to write down "all crap" in their journal?