A quick and easy recipe for household window cleaner, courtesy of Heloise.
12 to 16 ounces water
1/2 cup white or cider vinegar
1/4 cup rubbing alcohol (70% solution)
1 to 2 drops blue or green food coloring (optional)
1 to 2 drops of your favorite essential oil (optional)
Mix it all together in a marked spray bottle. Bonus: use newspapers to wipe with - no streaky windows and you're recycling. Wipe one side of the window horizontally and the other side vertically so if you do get drip marks, you'll know which side to re-do.