I have been washing our vehicles for over 55 years and I have yet found a product that cleans the glass. I generally use the standard Windex and paper towels and in the shade the glass looks good but ...
Newspapers only work if they are using old newspaper ink. Many small local papers still do. So if the ink comes off in your hands while reading then that's a good window cleaning paper. If not its just a giant paper towel the type that does not absorb anything I too use winded and Invisaglass. The Kit wax idea is very interesting ...