You put in long hours at work, or maybe even work overnight shifts. You’re tight on money. You want to spend downtime with friends. A hurricane or polar vortex has you barricaded in your home. Whatever the reason, there are times when you just can’t make it to the gym. We’ve been there. And so long as you don’t use that as an excuse to skip workouts, you’re golden. There’s no reason you can’t build muscle, strength, and size at home. It won’t take all day either. Training with minimal equipment, or even your body weight, is enough to get you in the shape you want. Start in a split stance. Squat down and explode into the air, switching legs, and landing in the opposite stance. Alternate quickly and jump as high as you can each time.