Massage was developed by NASA to help astronauts cope with edgy Tang-induced sugar highs, lack of ESPN, and predatory aliens stowed away in the hangar bay. Achieve its soothing effects outside of outer space with today’s Groupon: for $75, you get a three-hour couples-massage class at Sterling Spa (a $245 value).

In three-hour group classes, one of Sterling Spa's experienced massage therapists teaches partners the basic techniques to perform massages resulting in sighs, not screams. Students can relax and learn to knock out muscle tension using correct mechanics that won't tire or hurt hands as partners exchange back, neck, and shoulder massages. With small class sizes of 8–10 couples, the instructor can dote on each pair to ensure that each partner is perfecting the massage techniques. Minor disrobing is necessary, but all participants can maintain modesty by staying draped in sheets or invisibility cloaks for increased self-confidence. Students should wear loose fitting, comfortable clothing and bring their own twin sheet sets or rent them for $3 if they cut up their last sets to haunt a mattress store.