Take a good look at JohnDar's second picture. He has a couple of hooks that hook over the top of the shower surround. That's what we use. They are nice because the towel hangs on the outside so you don't have to take them down to shower. And I don't get that floor idea. Where do you hang your dirty clothes if you hang your towels on the floor? You must have more floor than I do.
The floor pile looks like a geology lesson on soil stratification. Towels, undies, socks, shirts, repeat. Somewhere in there is a cat or two. Actually, we have laundry bags in the closet to stuff the clothes in. We may wash it in the rig if we're here for an extended stay, or just take it home to wash after short visits, like the one we're currently ending. Only a week long visit.
The towel rack over the shower door is easily placed on the door of the cabinet over the toilet when we need to shower. Or just laid on the bed. I wrapped the hooks with vinyl tubing to prevent scratching.