In today's workplace, sleeveless, bicep-broadcasting business suits are a common sight, and deal-closing golf games are eschewed in favor of sweat-slicked cage matches. Get in shape to vault over the corporate ladder with today's Groupon: for $49, you'll get an unlimited month of gym and fitness-center use, access to group classes, and an optional 30-minute fitness orientation with a personal trainer (a $100 total value) at the Powerhouse Gym on East Alameda Avenue.

Endless rows of machines, friendly staff, and a central Washington Park location give the no-frills sweat shop a comforting neighborhood feel. Expect to find eligible, state-of-the-art machines; intensive and expert fitness coaching; and a bevy of classes such as yoga, power sculpt, abs and flexibility, and cardio hip-hop. This Groupon also includes an optional half-hour orientation with a friendly personal trainer. He or she can teach you a new workout or show you how to operate equipment.

Powerhouse was launched by a pair of Midwestern brothers in 1975 and has expanded into a full-fledged muscle-growing empire, with a magazine, a television station, and a reputation for serious strengthening. Whether halted at stop signs or pining for Santa Claus, we waste most of our lives waiting for something beyond our control. Start mastering your muscles and commanding your health with today's Groupon.