6 Super-Effective Exercises for Your Teeny-Tiny Apartment.(2)

http://www.womenshealthmag.com/fitness/tiny-apartment-exercises

Overhead Squat (with Towel)

Why It Rocks:  This exercise challenges your glutes and arms and takes up almost no space, says Paris. To get your heart really pumping (without jumping up and down and angering your neighbors), increase the speed at which you do the reps—while keeping the correct form, of course.
How to Do It: Stand with your feet slightly wider than shoulder-width apart, toes turned out slightly. Grab a rolled-up towel with an overhand grip, hands slightly wider than shoulder-width apart, and raise it overhead (A). Squat down as far as possible without letting your knees jut out past your toes (B). That's one rep.