The cleaning solution. You can make an affordable and effective cleaning solution from household items. Just mix one to two teaspoons of dish detergent in a large bucket of warm water. Optional: Add four tablespoons of lemon to help cut through the dirt and deodorize. If your windows or mirrors are suffering from excessive grime, add a half-cup ammonia or white vinegar.
The tools. A squeegee and a good scrubber will garner the best streak-free results. After scrubbing the entire window or mirror, use the squeegee to wipe off the suds horizontally and then make your way from top to bottom. Don't forget to wipe the blade off on a microfiber cloth after each swipe. If you're resolved to use a sponge, use crumpled newspaper to dry. This might seem counterproductive since newspaper ink often smears, but it leaves no lint particles and the ink helps polish the glass.