I got a kit to help clean water spots off glass - mostly my old car's windows, but if it works well maybe the new car if it needs it, and the shower (which isn't bad). It uses a paste and a non-abrasive pad that you have to rub for quite a while. I wondered if my drill can be used to to that rubbing, saving me some effort. Does anyone know a way to get something like this onto the end of my drill?
I also have a small and 1/3 sheet sander, if that's easier to do.
Here's what the pad looks like.