Many types of window washing solutions are just soap in liquid form. There are also a lot of manufacturers that produce biodegradable, non-toxic cleaners that do not contain ammonia, alkali, or solvents. Additionally, you can also use home-made cleaning solutions that have been tested through the years. Professional products include: J. Racenstein's 3-star glass concentrate Ettore's Master Liquid Soap Unger's Gel and Washing pills Solker Company's CC super shine ABC Glisten These have proven to be effective in cleaning windows. You may also use dishwashing soap like Joy if you so prefer. Homemade recipes for window washing solution jobs include: ¼ cup vinegar in 2 quarts of warm water cup ammonia, 2 cups rubbing alcohol, and I gallon of water These are to be mixed an