Shower Curtains
These used to be the only way to tame the water from the shower that if left to splash all over the place can lead to a slip and the ugly water stains all over. They usually come in linen or some other artificial fabric that resists mildew and stains but eventually they will dry out and become brittle, crumbling into nothing.
Want a sure way to keep them clean and not absorb water, get hold of some liquid or paste wax you use on your car, apply and buff (try in an inconspicuous place for color fastness for some contain potent solvents) making sure you remove all traces of the wax. You could also use fabric protectors used on the car’s interiors that come in liquid form making it easier to apply, simply spray and dry. You’ll see the water running off without having to worry about staining in the long run.