I printed out numbers 1 - 20 in large font (with about 1" space between each number.) Had it laminated and the cut the numbers in small pieces. Put a small hole in the order of each with a small hole punch. then put a small safety pin in each piece. So I just pin one to each row. I always put them in the upper left corner so I'll know which way to sew the next row. When I'm finished, I just pin them to a larger safety pin to keep them together and put them in my sewing cabinet storage area in the door. Then I have them whenever I need them and don't have to write out the numbers each time. Has worked great for me.