Instagram is filled with makeup tutorials, home inspiration, and yes, even workouts — and with the ability to save posts to look back on later, it's a great way to mix up your routine. I follow certified personal trainers [1], athletic brand executives, Pilates instructors, and even college seniors who just really like to work out, and between them, I'm never without workout inspiration [2].

If you want to build muscle, feel more confident in a tank, or just be able to carry all of your groceries in one trip, you'll love these Instagram workouts that can help you tone your shoulders, biceps, triceps, and upper back [3], often without leaving your home. Keep reading for the list, then get to work!