The practice of martial arts—similar to the practice of imagining Richard Simmons frowning whenever one feels the desire to eat chocolate—gradually builds discipline and a healthy body. Keep punctual self-regard alive with today's Groupon: for $35, you get one month of unlimited classes at David Vincent's Martial Arts & Fitness on Bluebonnet Boulevard (a $144 value).

A center of tae kwon do instruction since 1992, David Vincent's Martial Arts & Fitness instills discipline and physical mastery in martial-arts students of all ages. After signing up for their one-month membership, students will be given a karate belt and roundhouse-kick license. Programs run the gamut from the Little Dragons (4–6 years old), Children (7–10 years), Teens (11–16 years), and adults (17+ years), ensuring instruction appropriate to every age level. Youngsters can sharpen their technique at various class times scheduled throughout the week. At the end of the one-month membership, students who wish to continue their training or explore how other colored belts complement their eyes can apply the price of their Groupon toward a full membership.