You self-police. Normally you might not think twice about, say, nibbling a sample of cheese at the grocery store or finishing the french fries on your child's plate. But if you're recording every morsel that passes between your lips, you're more likely to hesitate: "Oh, if I eat it, I have to write it down. Well, then, forget it. I'm not even hungry." That's a huge help, since all those little tastes really add up.
Our December issue features Oprah's Favorite Things—as well as your chance to win them all! You'll also find our easy holiday declutter plan, Dr. Oz's guide to sleeping better (starting tonight) and the ultimate holiday menu.