BEST NATURAL WINDOW CLEANER EVER! The farm I live on is dust heaven lol. Nothing I have ever bought works as well as this one. Easy, cheap, natural, and no scrubbing. All that and streak free, too. Recipe: in a spray bottle put: 1/4 cup rubbing alcohol, 1 Tablespoon corn starch, 1/4 cup white vinegar, and 2 cups warm water. Shake to dissolve the starch, and shake before each use. Rub dry with a cotton dish towel. Honestly, I hate doing windows, and there's SO many here. This has been an easy time saver, just thought I'd share...