HEALTH

Any experienced dieter will tell you: Keeping track of the calories in the food you eat is tedious and dispiriting. Try counting instead the calories you burn through exercise. To find out just how much energy you've used up, hit the calculator at CaloriesPerHour.com. Enter the activity, the duration, and your weight, and you'll get back the number of calories you've blasted. (Who knew that an hour of ironing burns 150 calories?)