Exercise is more enjoyable when performed with a supportive group, which is why the cast of Cheers won most national relay races. Work out in tandem with today's Groupon: for $22, you get one month of body-strengthening, Pilates, and step aerobics and strength-training classes at Ruth's Robics and Dance Co. (a $45 value).

The experienced instructors at Ruth's Robics and Dance Co. guide groups of fitness-seekers through body-strengthening, Pilates, and step aerobic, and strength-training classes while stressing improved balance and muscle control. Body-strengthening sessions pit complacent fibers against an emotionless trio of weights, resistance bands, and balls, which sculpt toned torsos and prompting shy curves to emerge from epidermal covers. Flat surfaces form the foundation for most buildings and for step aerobics classes, which begin with an upbeat cardio routine before transitioning into floor exercises that target major muscle groups. Link your brain to your body through breathing exercises during Pilates classes, which focus on core conditioning to fortify postures, strengthen abs, and help trainees achieve a leaner, healthier look.