I have a little ( tool) from Nancy's Notions, very inexpensive, it is like a smooth sanding disc with a handle. I've been using it for 10+ years. It works great to smooth my mat. Sometimes I am cutting wools, or silks which seem really hard on the mat, I just grab the smoother & fix it. ( and I've tried other products, green scrub pads, sand paper, ...nothing has worked as well as that disc)