Have you ever been sewing a stitch and flip block and then realized you're cutting off and tossing out perfectly good triangles?
Me too.
This happened to me at quilt retreat recently, and I thought to myself… “Ya'know… I could just make an EXTRA Half Square Triangle here to save for later."
So I did!
With stitch and flips, you sew on the drawn line instead of ¼" away from it. So to make the extra HST, you'll want to sew ½" away from the drawn line on the other side so you can still have your seam allowance for both pieces!