We get it — sometimes you just can't get to the gym. That doesn't mean you can't squeeze in an effective workout in the comfort of your own home, though. Whether you're a newbie to the dumbbells or you're a weightlifting junkie, there's bound to be something here for you. Some of the workouts are bodyweight-based, while the others require some equipment, like a pair of dumbbells or a kettlebell. Find whatever works for you and get your sweat on!