On this board a few days ago I have found another way to make HST's. Cut a rectangle as high as your unfinished HST and one inch wider. Mark from one corner 45 degrees to the bottom. Sew this line and you have your sewn HST when you open that up. Turn to the opposite corner and again mark the angle and sew it. That way you have only one dog-ear when you cut them apart. I was surprised to see that. I haven't measured, but I think it uses less fabric. There is still one inch of extra fabric, but only on one side. Has anyone else done this?