I decided to try it on a door we have on our backyard patio area. Now I haven't cleaned these windows yet and we just moved in at the beginning of February, but the previous owners had this back room all covered in plastic to seal out the weather and they used it as a smoking room.
|Window Before Vinegar|
After 2 rounds of spraying and wiping I got this result:
|Window After Vinegar|
A word to the wise though, wear some sort of gloves when using newsprint for cleaning windows like this, my nails are still a little black around the edges from the ink.
So in the end I used probably less than .05 worth of vinegar and newspaper from the free issue we get once a week anyways. I ended up doing 2 patio doors and my front door and 1 window this way, and I plan on doing the rest of the windows in the house - well....the ones that we can get open anyways. Some are stuck shut, some are painted shut.....this house needs alot of TLC.