Finally a superb Window Cleaner
 

No more store bought window cleaner me. I found this DIY formula on the net.
2 cups water, 1/4 cup white vinegar, and 1 teaspoon Dawn dish washing liquid. In order for me to clean all my 22 house windows, and the 4 glass windows in my French doors, I started out mixing 12 cups of water, 1 1/2 cups white vinegar, and 4 Tablespoons of Dawn Dish washing liquid. It was just enough to do the job and there was no residue left. I also mixed up 2 cups with the vinegar and Dish washing liquid in a spray bottle and cleaned the windows on my Boxster. I like it! I suggest giving this a try! I might add, I am not sure about using this mix on tinted windows.