My five year old autistic son was a bad boy today. He put a dining room chair next to the refrigerator, put his little kids' coffee table chair on top of it, and climbed to the top of the refrigerator. He fished a Sharpie Marker our of the cup of pens and pencils we keep up there, climbed down, and marked up the front and side of the refrigerator. It fell to me to try and get the black marker off the white crackle-enamel finish on the fridge. Dishwashing detergent? No soap. Windex just shined me on. Brillo pads only scrubbed the surface, fading but not removing the marker. Mineral spirits got off most of the marker he'd put on last, but not the scribbles he'd done first. Then I thought of Hoppe's No. 9. I figured if it would clean powder residue and lead vapor out of a barrel that were deposited by hot gases, it would be able to handle Sharpie Marker with no problem. I put some on a paper towel, and it took the marker right off with only a little rubbing. I washed the refrigerator down with soap and water, and I had a clean fridge again. So for those stubborn marks on your stove, fridge and walls that other cleaners just won't touch, use Hoppe's No. 9! Available at better gun shops everywhere!