From Carol Leavy
I use small strips of sandpaper, and sometimes the grit of the sandpaper is not visible on the backs of the small pieces. A friend suggested I reinforce sandpaper with strips of duct tape, especially when I’m sanding in tight corners. I decided to color-code the duct tape based on the grit. Cover the back of the sandpaper with the colored duct tape, and cut the sandpaper into strips with scissors. Clean the adhesive off the scissors with Simple Green.