Plan ahead; you'll be more apt to "spend" calories more wisely. Going out for dinner later? Choose a lunch that isn't laden with calories and fat and get excited for the indulgent meal you'll be having later.
"If you know you’re going out to dinner, and you know you want to make certain choices that night, alter how you eat throughout the day," says Hungry Girl Lisa Lillien. "Don’t starve yourself, but don’t make the bad choices during the day if you know you want to splurge a little at dinner."