On blockcentral.com you can print a grid to make HST. You layer the grid over your two fabrics that are placed right sides together, sew around the dotted lines. then cut on the solid lines. Pull off the paper and press. Voila, perfect HST! There is one for 1 in, 2 in, 3in, and 4 in finished. They make 8 to 12 HST at a time. I was using this yesterday and made 120 HST in about 20 min.