I've found this to be the best glass cleaner, even for LCD monitors. Works better than any LCD cleaner I've used. 1:1 ratio. How about you?
Seeing silly high ajax and windex prices when I was a janitor as a kid, Old Bill taught us to make window cleaner from
everclear, distiilled water and .... a tsp of ammonia. to a qt.
You can change the water /alcohol ratio depending on temperature and desired evaporation rate.
And If you have Easter egg dye you can add a drop of that nice blue or orange!
The Alcohol/ Ammonia mix is what makes windex smell like windex.
We had to clean dozens of windows in a church rectory - and the pastor smoked cigars like a chimney!