No Snacks, no sweets, no seconds. Except on Days that start with S. Too simple for you? Simple is why it works. Look here for questions, introductions, support, success stories.
I am now on day 3 of the NoS diet, and I have really been suprised that I can do it. I don't think I've gone a day without snacks in years and didn't think I could go a whole 6 hours without eating. Surprise, surprise!