Originally Posted by jrhboxers

With the rising cost of fabrics, not to mention the time and effort, I have decided that it is "penny wise and pound foolish" to become frustrated with dull rotary blades and machine needles. When I start a new project I start with a fresh blade and needle.

I just wanted to post this because I have had such a good experience with them.
$12.99 for 10 blades with FREE shipping.

http://www.ebay.com/itm/10-45MM-ROTARY-CUTTER-REFILL-BLADES-Sewing-Quilting-fits-Olfa-Fiskars-cutters-/231108737138?pt=LH_DefaultDomain_0&hash=item35cf27 7872

No affiliation with this seller, other than just being a very pleased customer several times. I figure with the prices of fabrics, I owe it to myself and my outcome to invest a little more and not get so frustrated in the process.