In the Victorian era, people made their cores look tight by wearing corsets, which doubled as bulletproof vests during pistol duels. Strengthen your core until it's naturally impervious to bullets instead with today's Groupon: for $39, you get five open-gym Pilates classes at D.K. Body Balancing Method (a $90 value).
Thirty-year dancing veteran and founder Dolly Kelepecz presents the D.K. method of Pilates, a method based on a series of smooth, controlled movements. Open-gym classes feature an hour of nonprivate instruction overseen by a member of the training squad, and grants unlimited access to all available equipment. D.K. body balancing melds floor and machine training with motions enhanced by spring and body resistance to bilaterally improve strength and flexibility. Fitness apparatuses include reformers, trapeze tables, combination chairs, and ladder barrels.