Thomas Edison declared that genius is 1% inspiration and 99% perspiration, a fact he discovered while inventing the volcano. Work up a healthy sweat with today’s Groupon to Red Rock Fitness. Choose between the following options:

• For $19, you get one month of unlimited boot-camp classes (a $49 value).
• For $19, you get a one-month gym membership with waived enrollment fee (up to a $54 value).

Red Rock Fitness’s nationally certified trainers zap bodies into shape with an electrifying boot-camp regimen that combines weight and aerobic workouts for all fitness levels, and regular members enjoy self-guided workouts and a host of gym amenities. Boot-camper hearts pump like muscle-car pistons as they speed through a regimen designed to shed calories and increase strength and flexibility. Each drop of sweat sends out an echo as it hits the floor of the gym’s expansive interior, though the sounds are obscured by the ringing out of kettlebells and the supportive cheers of classmates. A convenient five-day schedule wakes up early-risers with a jolt of endorphins and sings night owls to sleep with exhausting evening workouts.

Gym members hold unlimited calorie-burning credit cards that grant access to a bevy of amenities, from a basketball court and locker-room facility to free spin classes and discounts on tanning services ($15 per month with membership; $25 without). Both the boot-camp and membership options include free supervised childcare for tiny tots or spouses clutching giant lollipops and masquerading in Little Lord Fauntleroy costumes.