Clean spray bottle
16 oz hot water
A few drops mild dish washing liquid Dawn is a good choice
Combine water and dishwashing liquid in the spray bottle. We recommend using distilled water to get a streak-free finish.
How to Use DIY Window Cleaner
Be sure to choose a new, clean spray bottle for your DIY glass cleaner; old bottles might contain residual chemicals that could cause a reaction. You should also label it accordingly. Avoid using any cleaner containing vinegar on marble, granite, slate, tile, or solid surfacing, which it could damage. For other cleaners, always test a small spot first in a hidden location to be sure it won't damage the surface.
When using your homemade cleaner on windows, mirrors, shower doors, and other glass surfaces, always work from top to bottom. This trick helps to prevent drips and streaks from the top down. You should also give your homemade window cleaner time to work. Spray, then wait a few minutes before wiping dry with a microfiber cloth. Note that the cloth should be totally clean before you use it on glass surfaces. If there's any laundry soap or other residues on your cloth, you could leave behind streaks. For this reason, never launder your cleaning cloths with those used for cleaning the car or other greasy jobs. Paper towels and rags are also a bad choice since they leave lint and residue behind. With these tips, your DIY window cleaner will erase streaks and achieve a clear, shiny finish.