Originally Posted by Ginaky

You can put you fabric over just the size you want to cut. To keep from damaging your cutting mat (placed on top of the fabric), use a smaller one that will just cover the one part you want to cut. Otherwise, you will make deep grooves in your mat. I do this all the time. Also, you can take older mats and make sections that will be the right size for some of the smaller cuts you want to do.