what you hang on your hanger?

I personally tend to utilize the floor as ultimate storage for everything, but my husband hates this. He has to store everything off the ground. Thus, as a compromise, he introduce me/installed a lot of hangers everywhere. I understood when I got a hanger on the wall against the kitchen sink. There are a lot of utensils or tools with hole for hanging. However, when I saw that my husband hung his tennis racket on the over-the-door hanger I thought it is a clever way of storing racket. I haven't notice there are actually a lot of holes in the racket that you can hang it against wall because I expected the handle should have a hanging hole to hang it, just like the kitchen tools.