Many hands make light work. Window washing can be fun! First, let the kids make a mess. Crayola makes Washable Window Markers. Let your little Picasso sketch the dog, or encourage the twins to engage in a rousing game of Tic Tac Toe. Easy, green cleanup – spray with lemon juice mixed with water, wipe with a damp towel, and then wipe with a dry towel. Sparkly windows, happy kids.