Check the measurements on your mat. If they are pretty close, you can use those lines. Start with a straight edge with the fabric at zero and put your ruler at the 6.5" mark./QUOTE]
Never even thought of doing it that way! I read somewhere early on that you should never use the lines on your cutting mat for measuring your fabric cuts, so being the obedient soul that I am, I never have. Noticed Jenny Doan of Missouri Star Quilt Co. using her cutting mat lines on a recent video. It also looks like she does more ironing than pressing. All of it sure seems to work for her!