Make a homemade window cleaning solution by mixing together 2 tablespoons of cornstarch, 1/2 cup of ammonia, 1/2 cup of vinegar and 4 quarts of water, states Reader's Digest. Mix the solution in a bucket and then pour it into a spray bottle.
The best way to use cornstarch-based window cleaner is to spray it on a window, and then wipe it away with a cloth moistened with warm water, says Reader's Digest. After wiping the solution off the window, drying the surface with a dry paper towel leaves it clean and streak-free.
Cornstarch is more than just a cooking ingredient; it can be used for a wide array of purposes in the home. Sprinkling cornstarch on a soft cloth and using it to rub a grease stain helps remove grease stains from a wall, notes Reader's Digest. Making a paste with cornstarch and water, and then rubbing the mixture over silverware leaves it clean and shiny. Cornstarch can even be used to repel roaches; a mixture of half cornstarch and half plaster of Paris, sprinkled in the crevices where roaches crawl, keeps them away. Sprinkling cornstarch on a carpet and letting it sit for half an hour before vacuuming helps remove odors.