Get Free Sign-Up, regularly $29.95, when you buy a one-month membership at Weight Watchers Online. This is a savings of more than 50% off what you'd normally pay. A three-month membership gets you an additional $3 discount. You can participate entirely online in this program, which provides mobile tools to track activity, food, and weight, with 4,000 recipes, interactive features, cheat sheets and more. Your subscription is automatically renewed at that monthly rate ($18.95) until you cancel. See here for more details.