I have an 6x18 Fiskars that came with my first rotary cutter (which I still haven't found!) and I love it, I got it a Wal*Mart. Someone one on QB a while back had gone to HomeDepot or Lowes and had some large sheet of plastic sheeting cut into various sizes (for free) and she left with several pieces/sizes for a fraction of the cost of the quilting/craft cutting mats.