If you know you just can't help overindulging on sweets or you feel guilty for already stuffing your face, then you may want to get moving. Concentrate on workouts that offer the most bang for your buck - those that burn the most calories in the least amount of time. {relatedarticles}Increasing intensity in those exercises that you already do is a great way to burn more calories. Exercising at a moderate intensity is best. It should feel somewhat hard, and you should breathe faster, break a sweat and feel a little muscle strain. If you can carry on a brief conversation but not sing a song, then you're in the zone. Spend about 30 minutes there. Interval training is particularly effective for jumpstarting calorie burning. If you normally spend 30 minutes at a brisk walk on the treadmill, then try increasing the incline for the duration of the workout.