Perspiration gets mischievous when cooped up inside the body, acting out by drenching armpits on first dates and disguising itself as tears during job interviews. Release disgruntled body water with today's Groupon: for $49, you get one month of boot camp at Infinite Fitness (a $189 value). A month of boot camp equates to three sessions per week over the course of four weeks; sessions take place Monday through Friday.

Infinite Fitness molds muscles and hastens heart rates of all fitness levels in outdoor summer boot camp sessions. Certified personal trainers slough away softness to reveal chiselled foundations in four classes per weekday, so workouts can become as regular as morning coffees or moments spent thinking about cheese. No limb goes untoiled in this full-body workout, which incorporates a comprehensive spectrum of cardio, body weight, and strength training equipment. Brandish kettlebells, gliding discs, and ViPRs while minds focus on achieving results as quickly as possible. Camps are held through snow, shine, and raining medicine balls, and students are expected to dress accordingly.