So here's my little trick. 3M Command Strip have a wonderful shower product. Here's a shower hook that can hold my caddy on the opposite wall. I can rinse my hair without being startled by falling hair products!
A word about the items pictured: My kids are now able to bathe themselves. I squirt some shampoo/body wash on a rag and they can wash themselves. It's wonderful! Sometimes there are a bit dramatic about soap in their eyes - solution: goggles. Sometimes they don't believe me that there is still suds in their hair - solution: hand mirror. Sometimes they can't use the same rinsing cups because they don't like the color - solution: multiple cups for my divas.