So many instructions tell you to cut across the width of the fabric (42 inches) I cut length wise (up the selvedge) and I never cut a strip longer than 20 to 24 inches. You can fold the fabric once to be able to use a 12 inch ruler. The problem with cutting the width you have to fold twice to use a 24 inch ruler and that is where the bow comes in no matter how experienced you may be. Judy Martin a stellar quilter and designer has always given this advice. Try it.
Happy quilting
Severna