One thing I could never understand about patterns and sergers: why do we have to cut off the "scrap?" Why can't the patterns just use a smaller seam allowance so we don't have to keep wasting fabric? I know, I know. A lot of people still use a regular sewing machine, myself included, and still sew with a 5/8" seam. Just seems like such a waste to cut the fabric bigger just to cut it smaller when serging.