I was going to bring up the topic of rotary blades when I saw this post. It seems after one session of cutting, my blade has a nick or a dull spot. Since I just got it and they're not exactly cheap, I'm not about to go buy another so I make do, cutting over again until the fabric is cut.
But now that I know about Harbor Freight, I'm going to check and see if there are any stores in my area. Thanks for the tip, ladies.