Sprayway Glass Cleaner -- you can buy it almost anywhere. I used the aerosol...dont' know about the others. The active ingredient in it, was used as an aluminum cleaner. Works great!!
spraywayretail.com
Ammonia-Free Glass Cleaners - Sprayway Cleaners
Tackle any glass surface with Sprayway Glass Cleaner. It won't drip, run or streak and it's ammonia free. It's the World's Best Glass Cleaner for a reason.
spraywayretail.com