Quick and Easy Homemade Window Cleaner. Mix equal parts vinegar and warm water. I used one cup warm water and 1 cup vinegar. Add teaspoon dish soap (I used the magic blue Dawn soap)* Shake to mix in a spray bottle.
I already use diluted tea tree oil and my own lavendar for cleaning everything from me to the bathroom sink. These are some terrific recipes for homemade cleaners: Anti-Bacterial Spray, All-Purpose Cleaner, Grease Cutter and Bathroom Cleaner.