I use "Dissappearing Windows"- it's a glass cleaner I pick up a trade shows. Seems to work well. I like picking up stuff from vendors at shows rather than large stores- help out the little guys if I can.
I've tried most of the products mentioned here. Lots of good choices, no doubt. I picked up a bottle of WINDEX Foaming No Drip cleaner a few days ago based upon a recent comparo in Consumers' Distort. I paid around $3 for it from the grocery store. I used it on the car and thought it did a great job. In fact, it looked so good, kinda like Stoner's IG, that I kept going back to the car and finally convinced myself that it must be my imagination
I spent several hours cleaning glass in the house (windows, doors, chandelier, etc.) this past weekend and it turns out that this product kicks some serious you-know-what and it does leave the glass super glossy. Lack of streaking is another benefit. In fact, it probably cleans better/faster and looks nicer than anything else I have tried recently. It's a nice $3 surprise. It's that good!
I don't think it's a new product, I just haven't really noticed it before.
Last year I was a big Sprayway user...but I found a new and better one...Zep's commerical glass cleaner...the non ammoniated one...its green in the jug....it cleans like crazy..streak free and tint safe.....a gallon makes 32 gallons of cleaner..its 9.89 a gallon at home depot...well worth it....
Griot's...and I really don't like Griot's. I got a free sample in some garage things I'd ordered and although I've been a loyal SIG user for years, Griot's is sooooo much easier to use.