Stacey Griffith, a 20-year fitness veteran whose celebrity clients include Brooke Shields and Jody Foster, offers this advice: "Turn on the music and dance. You can even do it while you are washing dishes or folding laundry. It provides a cardio boost to your day and helps burn body fat." Griffith also suggests "taking time to 'speed smile' by making an exaggerated smile and repeating it at a medium pace for about a minute. It works several muscles in the face and is great for maintaining the skin's elasticity."