A wonderful window cleaner can be made out of the following:
Mix 2 cups of hot water with 1/4 cup of vinegar and a tablespoon of cornstarch. Mix very well, and the pour into a spray bottle. Use with crumpled up newspaper. The windows will shine!
By Robyn 
I am curious to know how the cornstarch helps? I have used vinegar and newspaper before but never tried cornstarch. Does it work on grit?
I don't have the slightest clue how the cornstarch does it, but i own a cleaning business and the only thing I've not vowed to going all natural with until just now is glass cleaner but I'm SOLD!!!!! Thank you for saving me another $20 a month!!!