Many packaged crackers are loaded with fat. If you want to see how much fat is in a cracker, but don't have access to the box, rub it with a paper napkin. Crackers that leave grease marks are probably high in fat, so you might want to eat them in small amounts.
We've heard it before, but it's worth repeating: spot reduction does not work. Studies show that people who regularly do as many as 100 sit-ups a day have no significant loss of abdominal fat. If you'd like to trim your waist or tummy, concentrate on aerobic exercise for fat burning and do sit-ups to help tone stomach muscles.