blew dust on sensor :(
Yes, I have the Pentax cleaning kit (pink tacky thingy on a stick, tacky paper for pulling the dust off the pink tacky thingy) and it works very well. I bought mine from a eBay vendor for about $60.
I've only had to use it twice in the 15 months I've had the K10D. I've used a Giotto blower 3 or 4 times; a half-dozen operations of the "shaker" often helps.