Houses built in the last few decades are on average bigger than older homes, which would be great if you would just jog around the house more often. But large modern houses often have a central great room where everything is conveniently located on one level. Which means you're only climbing the stairs to go to bed. Instead of waiting until the end of the evening to take a climb, take advantage of any opportunities to hit another level. Don't leave items to accumulate at the bottom landing for a later trip—go ahead and make a quick, cardio-filled run up the steps. A 155-lb person burns about 10 calories per minute climbing stairs. The more trips you take, the more calories you burn.