Shower Doors and WindowsThe glass shower doors and windows in this Vermont residence provide unobstructed sightlines to surrounding scenery. Soap scum and hard water spots would blur the gorgeous vista. For soap scum and film: DeCocco suggests using a product called Bioclean to remove soap scum and film, and a monthly Rain X application to maintain a streak-free shine. For hard-to-remove water spots: If your shower is filled with water spots, try CLR, a tough cleaner that is still free of ammonia, phosphates and bleach. CLR's website recommends making a solution that's half water and half CLR; dip a microfiber cloth in the solution and apply. Warning: CLR is a spot cleaner and will damage natural stone and marble, terrazzo, colored grout, painted and metallic glazed surfaces, and acrylic tubs, so use it carefully.Stay away from: Abrasive cleansers.