Originally Posted by
quiltingshorttimer
cut some small squares or strips of the foam shelf liner--put between ruler and fabric. Works great and can be moved to allow you to see your measurement lines.
My friends and I have been using this method for a few years. All you need is a small 2" x 1" strip to put under your ruler to keep it stable when cutting. We keep the piece in our quilting tools and it is always there when we need it.