I'm thinking of it for my car glass, bathroom mirrors, and front picture windows with the incoming rainy season. The other wants the shower doors and tile
I just used some on cutips the other day to polish one of my watches. Turned the cutips greyish/black, I can't beleive what AIO got off considering the watch looked fine. And now my watch face beads water
No AIO on shower tiles, unless you have the "help, I've fallen and can't get up" device, Scott'll chime in on this