Vinegar and Water Solution
For a simple homemade glass cleaner or polish, the NaturoDoc.com website recommends combining 1/2 cup of white vinegar with 1 gallon of warm water. Pour this solution into an empty, clean plastic spray bottle. Spray the mixture on glass items and wipe off with a paper towel or lint-free cloth. This is an effective spray for cleaning any glass surface. Do not let the solution's strong vinegar odor keep you from using it. Vinegar is a natural deodorizer and its smell will fade in 10 to 15 minutes, leaving only a clean, fresh scent to the room.
Cornstarch and Ammonia Solution
An alternative to the vinegar and water solution is a combination of 2 tbsp. of cornstarch, 1/2 cup of non-sudsing household ammonia and 1/2 cup of white vinegar. Mix these ingredients in a bucket along with 1 gallon of warm water. This solution will give your windows a good spring cleaning, but try to avoid using it on sunny days because it has a tendency to leave streaks if it dries on the glass. Cleaning products that contain ammonia can be harsh on your skin, so wear protective gloves when working with this solution.