No need for clamps and wing nuts when you have the Gator Drywall Hook & Loop Sandpaper System. It allows users to replace sandpaper easily and eliminates the chance that the hardware will damage the wall. Heavyweight paper resists tearing and curling, and a special coating prevents loading of the grain surface. The sanding head measures 10 inches by 4 inches. Cost: $15 to $25. Ali Industries. 800-255-4748.