Wow! You’ve got to try this!
World’s Best Window Cleaner:
5 qt. (4.7 L) water
5 c. (1.2 L) white vinegar
5 tsp. (25 L) liquid dish detergent
Pour into bucket. Slosh it on. Hose it down. Squeegie dry.
You’d better boost your accident insurance because you’ll be smashing into the windows like crazy because they’re so clean. This is amazing!
Goodbye, high-priced commercial brand! Goodbye, streaks!
2022 update: My friend Lorna Blake has sent along her method, too:
“Here’s my window washing gear.
The bottom line on pail is 16 c. (4 L), about 1/4 pail of water. Add 1 drop liquid dish detergent and a glug (2 tbsp. or 30 mL) isopropyl alcohol.
“The T-bar and fleece “condom” are for washing; squeegie dry (elastic band on broomstick helps either attachment wedge on).
“Use (pale blue) “glass and mirror” cloth on one finger to wipe water from edges: Use a different cloth to wipe up drips.
“PS: Be ultra-careful with the rubber squeegie. Inspect replacement blades before purchasing. Mine had a tiny nick, I think from being held by a tight elastic in at the janitors’ supply store. I reset it to lead with the other edge, and damn, eventually got another nick. One tiny streak, each swipe.
“You can use the fleece washing bar for leaded glass windows, but dry with the “glass and mirror” cloth. Not as easy, though.”