window cleaner

I have tried every window cleaner around. I have trouble with horrible gummy stuff on windows and other surfaces partly because of heating with propane and partly because of a smoker in the house. I even consulted Consumer's Reports which never let me down before, but this time I still had streaking.
So I'm sitting at a REAL service station and they cleaned my windshield, which was really dirty, very quickly and with NO streaking. I bought some of their cleaner which is a mix with antifreeze, and voila! Clean windows and mirrors at last! The one I got is called Kleen Sweep by Castle products. But I imagine any cleaner/anti-freeze combo would do as well.