You're starting to get breathless when you walk to your cigarette break. It's time to trim down, and to do that, you'll need to know your weight and body mass index. Tip the scale and get the skinny on your BMI for free today at the Great American Weigh-In. From morning till evening, participating Houston Weight Watchers locations will show you just how far you've come from your high school weight. Waddle your way in from 8 a.m. to 8 p.m. For information and Weight Watchers locations, call 800-651-6000 or visit www.weightwatchers.com. Free.