I just placed an order for 20 blades after reading all these coments. With shipping, it's still only $2 per blade. I'm really tired of using blades longer than I should!!!!! because i think they're sooooooooooo expensive. It's a STUPID way to try to save money, because dull blades just make my blood pressure go up, and my accuracy go down!
I wonder how their carpet cutting tool would work on fabric? It looks a bit bulky - BUT it's only $3.99, so I wonder if it's worth trying. I'll take a look when I get to Tucson for the winter. There's a Harbor store there.