Instead of an après-ski Coors and soak in the hot tub, try this: Fill your bathtub with six inches of ice water and hop in. The chilly soak constricts vessels, pumping out lactic acid. When you get out, the rush of fresh blood back to the muscles reduces soreness and quickly rebuilds fatigued muscles. "Getting into the ice bath right after an intense workout, when your muscles are inflamed, is your best bet. Ten minutes will make your legs springy the next day, says Becca Blay, personal trainer and pro mountain-bike racer. "Or you could just take another shot of tequila and roll in the snow.