There is a woman who washes her windows by cleaning them with a solution made of onions and water! The windows shine too! If you want to try this, chop up a medium onion into eighths and drop it into half a bucket of warm water and wash away!
Or you can make a mixture of half cup of cornstarch to a gallon of warm water. Rinse with a little white vinegar!
from: Haley’s Cleaning Hints.