More Info On My Secret Weapon

This article explains why you might have streaking when cleaning with vinegar and what to do about it:

By Annie B. Bond, Care2 Green Living Executive Producer
If you have tried to clean your windows with plain vinegar and gotten streaks, there is a simple reason and an easy remedy.
Oddly enough, it was the task of cleaning windows thatturned a huge number of well-intentioned, environmentallyfriendly consumers away from non-toxic cleaning using thesimple ingredients that can be found in most kitchen cupboards.Around Earth Day 1990, every newspaper in the country(or so it seemed), offered tips for cleaning in ways that didn’tharm the planet, and the recommendation for windows wasalmost always to clean them with nothing but vinegar and water.People by the thousands tried this, and many swore off cleaningwith homemade products for good because the formula leftstreaks on their windows. (I wish I had $1 for every timesomeone has said to me, “Well, I tried non-toxic cleaning and itdidn’t work. I used vinegar to clean my windows …”)
The problem was that the commercial window cleaner used before the switch to vinegar left a very fine wax residue. The vinegar alone wasn’t enough to remove it, and the result was streaky windows. If instead, everyone had added a dab of liquiddish soap to the vinegar and water, the wax would easily havebeen removed and the windows would have been cleaned perfectly!My favorite recipe is to combine 2 cups of water, 1/4 cup ofwhite distilled vinegar, and up to 1/2 teaspoon of liquid soap ordetergent in a spray bottle. That’s all there is to it. (Make sure tolabel the bottle and keep it out of the reach of children