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You will need a 12 oz. spray bottle. Mix 3/4 cup of vinegar, 1/4 cup of water, 1/4 cup rubbing alcohol, 1/2 teaspoon of dish soap, 3 drops of mandarin orange-tangerine, sweet orange essential oil. Add three drops of peppermint essential oil. Mix well before each use to avoid streaks. Use newspaper to clean windows; it works better.
Source: Simply frugal helping you save money in Canada.
By coville123 from Brockville
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 
Fill up bottle sprayer almost two inches to the rim. Add 1 Tbsp dish detergent and 1 tsp. of any dishwasher rinse aid. Add blue food color, if desired. Screw back in the sprayer. Mix it up by turning it upside down few times and it is ready to use.
By Lani 
In a gallon jar, mix all 3 ingredients. Fill jar rest of way up with water. Use in spray container.
By Robin from Washington, IA
Put all the ingredients into a clean spray bottle and shake to mix. Use as you would a commercial glass cleaner. Spray on glass and wipe dry with a clean cloth or newspaper.
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Here are questions related to Homemade Window and Glass Cleaner Recipes.
How does cornstarch help make the glass cleaner streak free?
By Sue B
Do any of you have a recipe for a homemade window cleaner?
By Shelley from San Diego
By Spacecase 04/06/2012
1/4 Rubbing Alcohol, 3/4 water, a couple drops of Dawn Dish Soap. After you use this, you will never ask that question again. It can also be used in your cars windsheild washer fluid reservoir. You will never use anything else after trying this solution.
I am looking for a recipe for window cleaner. It was made with cornstarch and alcohol, and I am not sure what else. It really worked.
By Jilly from WI
By Saber Alexander 04/10/2010
Here are the few I have found:
http://www.frugalfun.com/cleansers.html (scroll way down)
I have used Windex's window cleaning sheets. They work great but are kind of expensive. Does anyone know how to make homemade cleaning sheets? Thank you.
By Karen from Charleston, SC
There is a recipe for glass cleaner with vinegar and ammonia. Do you have it?
By pthimlar from Zionsville, IN
By Danialle 07/25/2009
You can also use Windshield cleaner. It's cheap and works great!
I have made a window cleaner with Isopropyl alcohol, ammonia, water and essential oil but the ammonia's smell is very pungent. I don't know how to make the ammonia's odor subside. Can anyone help me out of this problem?
Raheel from Karachi, Pakistan
By mgkinnaird (Guest Post)02/06/2009
I would imagine that the essential oil leaves a greasy film on glass, causing streaking, and attracting dirt. The problem with ammonia is that is is quite volatile - it evaporates readily, and there is nothing you can do about that except try reducing the amount of ammonia in stages until it no longer works or no longer smells, whichever comes first.
Can anyone give me a recipe for window washing solution that can be used for outside windows in the winter? I just moved into a new home and the windows are filthy.
By Holly Burnham02/16/2008
I use vinegar and water as well.
Thrifty Fun has been around so long that many of our pages have been reset several times. Archives are older versions of the page and the feedback that was provided then.
I have the best glass cleaner recipe ever! I've been using this for over 10 years! You can also put it in your window washer container in your car. No streaks!
Mix equal parts in an empty squirt bottle.
by Sheila in Wisconsin.
Mix these three ingredients in one gallon of hot water. (04/01/2005)
Most window cleaners use a few drops of Dawn or Joy dish washing soap in a bucket of water. If you want to use as a spray, add some alcohol, rubbing alcohol works, but is not the best choice. For wind shield washer fluid add more alcohol to prevent freezing, not an issue if you don't have freezing weather.
It's not the chemical that produces the streak-free clean window it's the training, practice, skill, and techniques of the professional that make the difference. Professional tools also help. But why waste your hard-earned free time cleaning windows? It's easy to hire a pro, just look up window cleaners in the YP or Google "window cleaners (+your location"and spend that free time doing something you enjoy)! (06/08/2008)