The golden rule of sanding is to follow a progressive grit sequence. This means starting with coarser grit sandpaper and gradually transitioning to finer grits. The initial coarse grits help to remove the old finish, and surface imperfections, and level the floor, while the finer grits provide a smooth, polished finish. Following this sequence is crucial to achieving an even and professional result. Skipping grits or not spending enough time on each grit can lead to visible lines or unevenness on the surface. Each sanding pass should overlap the previous one to ensure a consistent and seamless finish. Adhering to the golden rule of sanding will help you achieve the desired outcome and avoid common sanding pitfalls.