When I am doing more than one class at the dojang, I take another uniform in a reusable Safeway grocery bag. It is a lot easier than emptying my school backpack.
The empty bag was sitting on my bed when one of my cats, Cheddar, decided he wanted to burrow. When he could not burrow under the blanket because my laptop was sitting on it, he picked the next best thing. The grocery bag. I, of course, had to take a picture. He has since decided to curl up elsewhere, which allowed for my Siamese to try it out.