Although feeling the burn during a workout is generally a good sign, feeling the burn while sitting on the sofa means your sofa is in the fireplace. Engage in controlled, constructive body burning with today's Groupon: for $27, you get 10 fitness classes (a $60 value) or a one-month membership with waived initiation fee (a $55 value) at Greentree SportsPlex on Iron City Drive.

Greentree SportsPlex caters to figure-formers of all experience levels with cardio and toning classes, weight training, and an array of indoor fields, courts, and batting cages. The 10-class punch card lets soma shapers sample any of the gym's nine classes, taught throughout the week. Athletes and greenhorn gymsplorers can take spinning, yoga, hip-hop cardio, and yoga classes. For cross-sport training, Soccercize offers a 50-minute total-body workout that pivots from simple soccer skills to develop endurance, core strength, and the ability to bicycle-kick passerby clouds. Classes are led by a team of talented instructors comprised of professional athletes, exercise enthusiasts, and an army of man-cheetahs.

Athletes who obtain the individual single-month membership will learn the secret handshake required to access the gym's 80,000-square-foot multisport facility—a facility used by the area's pro soccer team, the Pittsburgh Riverhounds. Though memberships do not include access to fitness classes, card-carriers can still curl dumbbells in the weight rooms, spin in the fitness rooms, and try to escape from the batting cages. The membership also grants use of the gym's synthetic indoor fields and basketball court for up to an hour at a time.