I've used Glass Wax for over 40 years, by far the best product ever for those tough Armor All fumes fogged up car windows.
However out of production, but at times found on EBay. I still have a couple go cans of it. Must be used according to instructions,,,but interior windows. Perfecto!
Perhaps one of these products from Amazon might do well,,,,you truly need a something beyond Windex and like products to do a good job if you are dealing with smoked up or Armor All fogged windows,,,although for light duty, Invisible Glass and excellent waffle weave microfiber cloth be pretty darn good.
Use your remaining Armor All to kill that crab grass in your lawn that Round-up can't seem to touch. Never ever use it in a car interior. Use something like 303 Protectant instead.
http://www.amazon.com/s/?ie=UTF8&key...sl_5jctkdd10c_eHere is a link to a happy user of a Glass Wax. Worth some effort to find.
http://www.annsentitledlife.com/anns-life/best-window-cleaner-ever/Although careful use of razor blades is ok to take paint or adhesive off a window,,,,I would never use steel wool of any kind. Do a piece of glass with it, hold it up to the sun, it's like holograph city,,,would be like washing your car with Ajax. Additionally some glass is softer than others,,,some may hold up ok, others not,,,why take the chance when there are other less aggressive means.
Just as with paint finish restoration, use the least aggressive product first.
to steel wool.