Holding a yoga pose builds strength, discipline, and immunity to motion-sensor devices. Prepare yourself for athletic espionage with today's Groupon: for $49, you get one month of unlimited yoga classes at Charlotte Family Yoga Center (a $135 value).

Households of all configurations harmoniously rearrange appendages during Charlotte Family Yoga Center's many classes. RYT-certified instructors guide the soon-to-be supple though flowing yet challenging sequences in Ashtanga yoga and deeply stretching harmony flows, as well as hot fusion classes that help flush toxins and arctic hares from their bodily hiding places by heating the practice room to a serenely steamy 95 degrees Fahrenheit. Prenatal yoga nourishes the bond between moms and their bundles-to-be amid a bright, peaceful, aqua-hued studio.

Kids not attending classes can also explore fun activities with an on-site child-care professional for an additional fee ($5 per child; not covered by today's Groupon).