WINDEX DOES...make a spray cleaner for auto glass & interior that has no ammonia at all in it. It is recommended for tinted windows. So far I only use it on my windows and have no problem. Just thought I would add this info in :)

I can't believe anyone would actually do what you claim you do. Get a quick detail spray. Windex has absolutely no slickness to it. Thus, you are absolutely dragging any dust/grit over you paint and guaranteeing marring in your paint. Quick detail sprays are designed to be very slick and let light dust be safely removed. Uggh. :7: