Bar Keepers Friend
Cleans and polish pretty much anything. A house hold must have! Kitchens and bathrooms. Cheap and has been around since the 1800's. I use it instead of harsh abrasive cleaners and it does a better job without the harsh smell and chemical fumes. Used it to clean a bathtub encrusted with soap scum. I used scrubbing bubbles at first thinking it would do the trick but nope all I got was a headache from the smell. Tried bar keepers friend next and it really worked.