In a spray bottle, add all ingredients. Close lid and shake to mix.
Spray onto glass and wipe with a sponge or wet cloth to remove large amounts of dirt. Follow with a paper towel to polish to a streak free shine.
Rubbing alcohol has a tendency to dissipate quickly. Make sure that the bottle is air tight during storage. If you have large windows, a squeegee that professionals use is very useful for cleaning in a quick manner.