Searching for studs
While rubbing down some window trim with fine steel wool, I noticed some little black dots forming on the wall nearby. To my amazement, I discovered that some of the steel-wool particles were being attracted to the drywall screws that I had used to install the gypboard three years earlier. Evidently, the magnetic tip of my drywall screwdriver had imparted some of its magnetism to the screws. Now whenever I need to find a stud to hang a shelf or a picture, I just gently tap a piece of fine steel wool against the wall until the black dots magically appear.
Jim Murray, Atlantic Beach, NY