To make your own you'll need:
* An empty spray bottle (I used an old Lysol bottle)
* 1/2 cup of white vinegar
* 1/2 cup of rubbing alcohol
* 2 Tablespoons of corn starch
* 3-4 cups of warm water (I used about 3 1/2 cups until the bottle started to overflow!)
And to be fair, I tested against original Windex.
Start by adding all the ingredients to your bottle, leaving the water for last. If you don't have a funnel, you can easily make one out of paper (or Post-It notes!)
Once the water has been added, screw on the nozzle and shake it for a few seconds. Now you're ready to clean those windows! It's really hard to show the results in photos but I did make an attempt.
I covered two pieces of glass with chocolate and sprayed the left with the homemade solution and the right with Windex.
So both solutions worked just fine but I might add some bullet points the original post doesn't mention...
* Smells bad (if you're cleaning all of your windows, get used to the smell of vinegar!)
* Leaves streaks
* Full of chemicals
* Paper towel leaves lint (though that might be the fault of the paper towel, not the Windex)
In the end, it's really up to you. I didn't like the streaks, nor did I like the smell of vinegar, but at least I knew what was in the solution. If I had kids and was concerned for their health, perhaps I'd stick with the homemade glass cleaner. For now, though, I think I'll stick with the Windex.
TOTAL COSTS: About $6
$3.29 for white vinegar$.99 for rubbing alcohol
$1.80 for corn starch
Empty Lysol bottle already on hand
Cost of Windex is $2.79 at Vons
TOTAL AMOUNT OF TIME: Less than 5 minutes
EASY-PEASY SCALE (1 super easy - 5 very difficult): 1 out of 5
There's nothing difficult about pouring all the ingredients into an empty bottle, it's just up to you whether you prefer this method over buying some over the counter!