mildew or hard water deposits? I find The Works works well for the latter.

depending on what you actually trying to do...the Mr. Clean Magic Erases are actually kind of magic on bathtubs

CLR is pretty good too.

been using a mixture of white vinegar, baking soda, and lemon juice. It even cleans grease.

This is the midpoint between bleach and fire. - video.google.com/videopl...