To keep my rows in order, I use numbered beads I bought at Hobby Lobby. They have single numbers, 0-9, printed on them and a small hole through them. I slip a number onto a quilting or safety pin to the end of each row when my quilt rows are layed out. For #6, I use a single bead and for #9, I use two beads, #09. That way I know for certain which it is. I tried the paper method but mine would sometimes fall off and I would end up getting stuck the the pin.