To paint over ANY surface, without sanding, use a product called 'ESP Easy Surface Prep', available at hardware and paint shops. Wipe on, wipe off and paint in 90 minutes. Works well over enamel paint , without having to sand. SAVES HOURS of work. It was recommended to me by a professional painter.
For laundry room...instead of the ugly tide bottle, use a drink dispenser for detergent. Pretty and you can see how low you're getting!! (this is an AWESOME idea for home made laundry soap dispensing too!!)