by Elizabeth Kelly Sometimes it seems like the secret to successful dieting hinges on just a few seconds of your day. You've been so good: writing in your food journal, sticking to the plan, passing up the office snacks. Then it happens. It may be that moment when you get home from work, or just a fleeting thought while you're watching TV. You're craving something, and you're craving it now. Don't let a few seconds ruin the hard ...