With the holidays behind you and a new year in full swing, spare time is hard to come by. But this is no time to neglect your training, no matter how packed your schedule. Exercise for only a few minutes, three times a day and you’ll still get a big on-hill payoff. Need more incentive? Wayne Westcott, author of Building Strength and Stamina, attests that the multiple short blasts of exercise can boost your metabolism, to help you finally nix those pesky pounds you’ve been carrying around since the holidays.