I cut scraps in 2 1/2 inch squares then I sew a light to a dark then I sew 2 together for a row when I have enough for 4 rows I sew them into a block. I start and end my sewing doing these . Often I will en up with enough to make a block while putting a regular block together. The one i am doing now is separated by navy sashing and will post a pic if I ever figure out how. Iuse 16 squares for these scrappy blocks.