How to Get Your Windows and Glass Surface really clean with Windex?
Spray Windex® Surface and Glass Cleaner on windows or glass surfaces, and then wipe it off with untreated paper towels, newspaper, or lint-free cotton cloths for a streak-free shine.
Make sure you use enough to remove all the dirt. Change cleaning towels as they become soiled.
Tip: Old, clean cotton diapers are excellent for cleaning surfaces with Windex®.
Cleaning windows on a cloudy day works best. Sunlight can heat up windows causing sprays to dry before you can wipe them clean.