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 $15, you get a three-week Learn Tennis Fast program, along with full access to club facilities at the Tri-State Athletic Club (an $89 value).

The Tri-State Athletic Club's expansive facilities enhance physiques with indoor and outdoor tennis, a year-round pool, racquetball courts, and group exercise classes. Air-conditioned tennis courts protect players from the spray of disoriented crop dusters as they engage in the three-week Learn Tennis Fast program, which schools budding tennis players in the scoring and techniques of proper racquet swinging. USPTA-certified pros guide future court whisperers (adults or juniors ages 4–18) in six lessons, focusing on the serve, backhand, forehand, and forehead sweatband.

During off-court hours, temporary members can take advantage of Tri-State's facilities, featuring an indoor track, pool, and courts for basketball and volleyball. A variety of group exercise classes include spinning, martial arts, Zumba, and jogging while carrying a sack full of dictionaries.