I too think it is funny Cindy Casciato claims to have "invented" this method and tool, I have been making HST using 1" bigger square for at least 15 years, if not more. I don't mess around with one square at a time though. I draw a grid on a bigger hunk of fabric and sew diagonals on the grid. Then I trim my completed one down. I don't think it is possible to come up with anything new for making HST.