Another top secret weapon in the war against hard water on glass shower doors is Invisible Shield Shower Protection. Once you have sparkling shower doors, apply a thin layer of Invisible Shield to the glass. It repels hard water, soap scum, fingerprints, and more! If you want to cut your shower cleaning time to as few as two or three times per year, you should try this product. If you use this product and are good about squeegeeing, you will get and keep sparkling shower doors!
Do you have any other tips for sparkling shower doors? Please share with other readers in the comments!