I made the best discovery this morning and I wanted to share it with everyone! I read somewhere that you could make reusable worksheets by covering them with contact paper. My son was using his Crayola whiteboard markers and we had some of those plastic page protectors on the table. I tried the markers on those page protectors and it worked beautifully! Washable crayon also works. The possibilities are endless for making customized worksheets for things like tracing his name, and favorite activities like mazes, tracing on the dotted lines, and so on. They can all be combined in a book to make his very own reusable workbook!