If you're a mindless muncher, there are a few steps you can take to curb the habit. Never eat late at night, until you're fully awake, or while multitasking. To avoid overeating in social situations, carry a bottle of water, a cell phone, or a clutch purse in your hand (it will keep you from snacking). And beware of alcohol, which can not only be highly caloric but also make you less aware of what you're eating.