Resistance bands are a budget-friendly alternative to weights that you can use wherever you are to work your muscles. And, right now, you can pick up a set for less than $20 in Amazon's Big Spring ...

“I'm really on Amazon ... bands—a.k.a. “booty bands” according to her—and they’re on double sale thanks to an on-site coupon.

Kardashian recommends a weight bench and two varieties of resistance bands to upgrade your home gym. “I love finding new workout equipment on Amazon ... “For Prime Big Deal Days especially ...