Your overnight guests don't need to know about your midnight refrigerator raids, so tighten up those creaking floorboards and stair treads before they wake up the whole house. Squeeeeek-No-More screws, available at home centers and hardware stores, draw flooring tight to joists, or stair treads to stringers; then their heads snap off, leaving a 1/8-inch-wide hole in the finished surface. "The holes disappear in carpeting," says This Old House general contractor Tom Silva. "For wood floors, fill the holes with a wax filler stick in a matching color."