Can a quilter have too many rulers? My favorite of all is the 8 1/2" x 12" Omnigrip, followed by the 8 1/2" x 24" Omnigrip. Then comes my 6 1/2" sq., 9 1/2", 12 1/2" & a very old Quilter's Rule 16 1/2" square. They're kinda like measuring cups - you can't cook with just a 1/3 cup measure.