8-10dropsessential oil of choice(optional. Lemon, orange, or another citrus would be my choice here, but lavender or others would be nice as well. Go here to learn why I chose this company as having the best essential oils for the money.)
Combine everything in a spray bottle. (You can reuse the container you already have from your store bought glass cleaner. I had to buy one at a dollar store since we haven't used glass cleaner in years :-)!)
Shake well to mix.
Spray onto glass surface and wipe clean.
Do not use this glass cleaner on marble or coated eyeglass lenses.If you have streaking issues (it happens sometimes) you can make this without the cornstarch.