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Avoid banking calories

Cutting back all day so you can indulge at an event that night only sets you up for a pig-out.

Why? You're freaking starving! "It's easy to get out of control when you're faced with high-calorie choices," says Tanya Zuckerbrot, RD, author of The Miracle Carb Diet.

Be sure to eat your three squares and a couple of snacks. Aim for lots of fruits and veggies, whole grains, and lean protein.

Next: Concentrate your workouts