My daughter has some challenges with coordination and strength, and washing her hair is a real challenge. She's the kind of age that it's not ideal to have mum in the bathroom, I'm wondering if there are ways to help with her difficulties. She currently comes out with her hair about the same or with big globs of unrinsed shampoo in it, which end up getting dried in there and it's sticky as anything. She has weak fingers and tires quickly, so it's hard to get her to rub at her hair, she forgets which product goes where and how much, and puts the product in one place then fruitlessly rubs an entirely different part of her head. We have a laminated card which shows what goes on in what order, I'm looking for a safety mirror she can use to see where the shampoo is (and, vitally, isn't) but would love any more tips. She has very long hair and wants to keep it long.