You’ve probably heard there’s no need to wash your hair every day, unless you work up a sweat. Even then, you should skip the shampoo.

But what about the rest of your body? It seems logical that the more you shower, the better. It turns out, though, you don’t need to soap up and scrub down as often as you think.

Your arms and legs don’t produce many oils, so washing them daily with soap will make the skin on your limbs super dry. Save the soap for the oily, smelly parts of your body: your armpits, butt, and feet.

The most surprising area you should stop soaping up? Your groin. While it’s a good idea to wash down there for sanitary reasons, men and women can steer clear of soap and just use water.