Some good tips,Maybe it is useful to you

1. Understand your cravings

Find that food and satisfy yourself. You may also find a calorie-match for your cravings. For example, you crave for chocolate chips and eat fruit instead; you get to eat as much until you feel content. A few slices of apples are way healthier and more satisfying than a single bite off that chocolate chip cookie.

2. Use a few tricks.

Nope, no magic tricks here. Just fool your stomach, as what they say. Eat some low-calorie salads that fill you up before your main course not only makes you eat less, it lets you consume fewer calories than you’re supposed to.

3. Squeeze in exercise.

Sweat it out, even once in a while. Exercise doesn’t have to be in the gym all the time. Those extra steps you make, the extra half-mile walks will do. If stuck in a long line, do some tap dancing or maybe some stretching. Put some groove when listening to your iPod – dance while you’re at it. If you need to get something, get it yourself. A few ten minutes of sweat burns more or less around 50 calories, adding up to around 350 calories a week.