Turns out a trick we learned working in retail (lots of windows!) is the best way to clean glass. The New York Times recently tested 20 different window cleaning methods and our retail trick came out on top — the best part is it's non-toxic, low cost and a way to recycle. The best window cleaner to get your glass clear and shiny is...
... a mixture of white vinegar and water wiped with newspapers:
The one that proved most effective was one part vinegar to two parts of water. It was very runny, though, which meant I had to wipe quickly and vigorously with newspaper. A couple of tablespoons of rubbing alcohol added to the mix boosted its cleaning power and made it evaporate faster.
The New York Times also recommended Greenology as the best non-toxic commercial based organic cleaner. While not tested by the New York Times, our favorite store bought cleaner is the Method Window Wash — paired with a micro fiber cloth it works like a charm. Check out the full review at the NYT Home & Garden site here.