Tetherball, tag, kickball -- remember when a break for fitness was the best part of your day? This deal from Ringside Fitness at Gold's Gym offers all the fun of gym class without the fear of getting picked last: Pay $19 and get a month-long membership to Gold's Gym with unlimited Ringside Fitness boxing classes (regularly $65); or, for the same price, get a month-long gym membership with unlimited fitness classes of your choice (regularly $50). Led by experienced and motivating trainers, you'll mix up your routine and drop digits from the scale with these energizing classes, which provide the heart-healthy benefits of cardio while developing your agility, strength, balance, and coordination. Exercise that's fun and keeps you strong? That earns an A-plus in our book. Want more? Check out Ringside Fitness at Gold's Gym on Facebook.