Anytime Fitness, which boasts 1,689 clubs in North America, makes it easier for average folks to etch out time for exercise by doing one simple thing: staying open 24 hours a day for 365 days a year. As fitness seekers challenge themselves on cardio and strength-training machines and hoist Iron Grip free weights in clean, well-stocked facilities, security monitoring ensures they’re safe and producing enough sweat to meet official government standards. Members can also ramp up their exercise regimens with the help of Anytime Fitness’s staff of personal trainers, who demonstrate moves and sling motivating tips. After workouts, guests can shower in the private restrooms or browse the gym's private line of nutritional supplements.