I almost forgot about this favorite. My sister is visiting this week and asked me if I cleaned the glass after she took a shower. I was a little puzzled. She said the glass is so clean it looks like I just cleaned it. I discovered Magic Shower Glass and Mirror Cleaner about 6 months ago. It works so well. I also use it on a glass sink. One thing I would disclose is that I used it on a couple of mirrors and it left the mirrors a little smeary. Maybe I am not using it correctly on mirrors. I highly recommend Magic for glass shower doors or any glass that water touches. It is so much easier than using a squeegee.