premise: To deice your windshield
hypothesis: Turn off the car's engine and remove the key. Place a large thick cloth--an old pair of sweatpantrs will do--across the windshield. Pour a pint of commercial de-icer onto the cloth. Allow to sit for five to ten minutes. Check the ice to make sure it's melting. Scrape off the ice with your fingernails. Store the clothing in a trash bag ready for disposal or to reuse in the future.