I've been using strips 2.5 X 4 or whatever I'm handed, putting them in long strips for a row, and then sewing the rows together. I put a 2.5 square at the end and alternate when sewing the rows. That way there is no matching seams. I think it is a brick pattern. The other thing I do is just start sewing pieces together and then cutting those into 6.5" squares. A real scrap quilt with no pattern.