House guests made a mess of my bathroom mirrors a few days ago. I just noticed this morning, so got out my cleaner, which is 1/2 white vinegar and 1/2 car windshield washer that I mixed in a spray bottle. The trick to getting them really clean and sparkling is using newspaper to wipe them. Wipe across with a crumpled sheet, then up and down with a fresh one.
By Ruth from Harlingen, TX
Just an FYI... you don't even need the car window washer - which can sometimes be expensive. I will typically clean my mirrors with vinegar mixed with water and about 2 drops of dish detergent (really - two little drops are plenty) per 3 cup spray bottle.
Also, diluted tea will clean the film off mirrors extremely well (and glass) - make a cup of plain hot tea (black or green) and add a couple more cups of water. The tannic acid is what does the job!
Be very careful with windshield washer fluid in the home. If you purchase it rather than making your own, it can contain anti-freeze! Very harmful for breathing and for your skin.
I use an old windex bottle and pour 1/4 cup vinegar, 1-2 tbsp of cornstartch, and the rest with warm water. Spray on glass/windows and wipe with newspaper. Easiest cleaning solution in the world and very GREEN! ;)