I remember being told when I was a child that we shouldn't turn on flourscent lights for short periods because it wastes energy since the bulbs have to "warm up' whenever they come on. So flourescent lighting made sense for offices and stores where they are on all day and off all night, but not for bathrooms or laundry rooms where you go, do your thing, and leave in short order. Rooms in houses fall somewhere in between. Is this no longer the case? Are flouresent lights enough better now that it makes sense to convert all your lamps?