I have an old squeegee in my daily driver that has a good rubber blade on one side and a metal edge on the other (left over from a plastic scraper edge that broke). I was in a hurry this morning and started using the metal edge, which made some light scratches in the windshield glass about 6" long. They're right in my line of sight and visible if the light is right. Most of it doesn't catch my fingernail but one or two small sections do. Is there anything mild I can use to try to lighten the scratches? I've heard of using Bon Ami or toothpaste. Are there any other home remedies to try?