I did it! I gave in a bought a True Sharp power rotary blade sharpener. LOVE IT! I have been going thru blades as if they were free! I just tried this power sharpener on my worst blade and it cuts like "buttaa". Money well spent to make my life easier!
That is exciting. I love rotary cutters, and I will likely need to invest in a power sharpener soon. I did not know that they existed - thanks for sharing.
Here are two links, one from Amazon.com, the other Joann.com. Neither listing specifies whether it can be used with Fiskar blades, but as long as the blades meet diameter requirements, it's possible.