Summer heat means a lot of wonderful things, but it also means quite a few annoying and even embarrassing ones. Top of that list? Sweat, and the stubborn underarm stains it causes! Every single one of us has had a shirt ruined by those stubborn yellow stains at some point in our lives, and far too many of us have simply tossed those shirts because the stains were too stubborn. No more! You CAN get them out, and OWN is here to show us how. Watch and learn.