The hurdles to creating a cool room may be surprisingly low? At this time of year, even if you think, ``I want an air conditioner in that room,'' the only thing that stands in your way is construction. During busy periods, there is a waiting list for installation. If you're renting, there's the issue of holes in the walls, and there may not be a place to store the outdoor unit in the first place, so it can get clogged...