Trick or treat! Halloween marks the beginning of a long season in which to eat, drink, and be merry. For many of us, this means indulging a bit more than we normally would, skipping a workout here and there, and maybe foregoing a salad for a bowl of soul-warming pasta. Add that to falling temperatures and a desire to curl up under the covers, and you have a recipe for diet disaster on your hands. The dreaded winter weight-gain can creep up quickly, but so can subsequent springtime weather, when ...