If you have a personal cutting machine, you know the cutting mats are not exactly cheap. Here is a way to use your old mats that are still a little sticky, but not quite sticky enough to keep your paper in place while going through the machine.
Use the mat to organize all your little leftover embellishments or paper pieces. I recently painted about 50 sets of eyes, and needed to keep them paired up. So, I stuck the eyes to my old cutting mat, and covered it with the plastic cover to keep them dust free. I can now store it just about anywhere, and not have to worry about the pieces getting messed up.