This cleaner is said to have been used to remove tape marks off windows after the hurricanes in 1986. It's also great for removing soap film from shower doors. It's the best I've ever used. I've heard the heat from the sun causes streaking, but this cleaner doesn't leave streak marks when used in the sun, so if used on a cloudy day it's sure to be foolproof.
Hurricane Window Cleaner
1/2 cup ammonia
1 pint alcohol
1 teaspoon dish detergent
Water to make a gallon
Put ammonia, alcohol and detergent in a gallon jug. Fill up with water. Shake before each use.
"Turn to me and have mercy on me, as you always do to those who love your name. Direct my footsteps according to your word; let no sin rule over me."
~Psalm 119:132-133
~Psalm 119:132-133