You heard me right, air freshener! I used a 97 cent can of Glade Apple Cinnamon spray. The trick is to spray small sections at a time. It needs to be sprayed fairly heavily. As soon as you spray, wipe with an old towel. It takes a little elbow grease, but the old marker comes off perfectly. So, not only do I have a clean board, but my classroom smells good, too!