I love these for cleaning glass anywhere in the house. Miracle Cloth I keep one in the shower, and before I turn the water off, I wet the cloth and quickly wipe the doors. I don't get soap scum building up, and the doors are beautiful. Seriously, these things are amazing. I just cleaned my 3 large, embarrassingly dirty balcony sliders, and all I did was spray on a white vinegar and water mix, squeegee it off and go over the doors with a dry miracle cloth. Not a streak anywhere.