Muscles, like newlyweds, must be tested and exercised to ensure that they can withstand cutthroat canasta competitions with intimidating in-laws. Motivate muscles with today's Groupon: for $50, you get 10 passes to the Summit Sports Club in Pharr (a $150 value).

As the official training center for the Rio Grande Valley Vipers, the Summit Sports Club greets guests with a wide array of alley-oop-grade facilities for physical fitness. Smack tennis balls and biceps into shape in one of Summit's four full-size indoor tennis courts or five indoor racquetball quadrangles.

Human halibuts can dive into aquatic instruction courses, which serve all skill levels and are available to nonmembers for an extra cost. Fitness classes include Body Pump, spinning, yoga, Body Jam, and more, emboldening exercise enthusiasts of every variety to stand stronger and prouder in fitting rooms and daydreamt auditions for yogurt commercials. Required equipment (e.g. racquets and gills) is not included in this Groupon.