This is the method I use......BUT...there are a few of you out there that do not like using vinegar as a cleaner. SO if you are looking for a cheap alternative to Windex think outside the box....
windshield washer fluid! Did you ever think to use this stuff? It is used to clean your car's windows so why not the windows in the house.....AND...this stuff is cheap! Right now it's on sale at the local supermarket for 99 cents a gallon! You would never find Windex that cheap.
So if you don't like using vinegar, try good old windshield washer fluid for your windows. A cheaper alternative.
Remember to give your loved ones a hug!