See, I told my husband you guys would have a better idea (he's such a skeptic!). And I would never have thought of using the table saw... but that's a good idea, too.
I just figured that using my hand say, while effective, would probably create more a mess than the project warrented, and wouldn't give me a very clean edge. Thanks for the great suggestions (again!).
PS: There's no better way to appreciate the heater when it's only set at 64, than to keep going in and out of the house while working on these stupid projects. It seems absolutely balmy! (Of course, you have to totally ignore the cats that have burrowed deep under all the afghans for the illusion to completely work!!!