Having slightly improved the bar that holdsBath curtains, you can get a large and very comfortable towel rack. By the way, such curtains with such bars should be sold in large sanitary ware shops. At least in foreign online stores they are, but the truth is quite expensive. It will make a double bar very difficult and not everyone will succeed. Therefore, in the form of a compromise, you can simply use two bars, one under the curtains, the other under towels. In theory, too, should be quite convenient and practical.