Great tutorial on making your own napkins with mitered corners. There is both a sew and no-sew method.
Mitered corners how-to for napkins
Mitered corners tutorial
great mitered corner tutorial
Quilting - binding & borders
Sew you want mitered corners, do you?
Quilting and Patchwork
How to make a mitered corner napkin.
Fabric, Patterns & Books, OH MY!!
tutorial on mitering corners
tutorial for mitered corner line and cotton napkins
An easy tutorial on how to sew mitered corners for your napkins, tea towels, etc.
so easy mitered corners