Working out with others motivates you to push yourself harder, helps you stick to a regimen, and gives you the opportunity to bond with new friends over tales of general sweatiness and mutual plans to beat up the ocean. Follow the shifting tides of fitness with today's Groupon. For $20, you get one month of unlimited high-intensity interval group training at Urban HIIT FITT in Independence (a $99 value). Experienced trainer Kri Chay and his approved trainers lead heart-pumping, fat-burning, 50-minute workouts six days a week. Workouts include training modalities ranging from jump ropes to jumping jacks to weight training to kickboxing. While most of the training sessions are designed specifically for women, Kri also hosts co-ed and youth fitness programs, allowing boys and girls to learn about sports and nutrition while still letting out 70% of their wiggles before bedtime. To view a complete schedule, click here.