Heat makes otherwise stiff objects easier to bend, which explains why most discarded twist-ties can still find work in Florida. Wrap your body around a bread bag with today's Groupon: for $59, you get one month of unlimited classes at Bikram Yoga Bronx and Bikram Yoga Yorktown Heights (a $135 value). The month of classes begins upon activation and lasts for 30 days.

Bikram yoga bends bodies in 36 weekly classes at its Bronx and Yorktown Heights studios, which ramp up to 104 degrees to bolster yogis' malleability. Bikram yoga runs through a signature 26-part series of asanas, or poses, in 90 minutes, stretching muscles and ligaments in a room heated to rev the body's internal temperature or slow-cook a pork roast. After a month of peaceful self-molding, yoganauts often note more defined muscles, a slimmer physique, and an ameliorated aura. The practice also detoxifies and revitalizes enervated organs by funneling them fresh blood, oxygen, and their choice of tropical juice.

Both of Bikram Yoga's studios afford convenience-craving yogis a slew of simplifying amenities. On-site showers return glistening bodies to premat mattes, and nearby parking lots mollycoddle cars for an hourly fee. First-timers can also complement an introductory class with an on-the-house mat and towel, and returning stretchers can rent them for $2 and $1, respectively, or earn a free one by successfully fitting into a suitcase.