Although this little liner may not be able to save you money, it will be a big help when writing those checks! We used our left-over quilting template plastic to use as a liner between the duplicate checks in our checkbook! Simply use the pre-printed lines to cut a piece slightly larger all the way around than your checks. Then place the liner under the copy of the check you are writing. When you are finished, move the liner under the copy of the next check, and so on, and so on. The template material is thin enough to slide easily into your checkbook without getting in the way, yet sturdy enough to stop your pen's impression on the next check!