Looking for a place to lay my head...

My Grandpa Bob turns 80 this year. The fact that I have to go to Fresno to celebrate when he lives down the street from us is just one of the smaller ironys of being in his family. Anyhow, I'm looking for reasonable lodging accomadations for a family of five in the Fresno/Clovis area (FREE, would be great!). The Thursday and Friday nights of May 16th, and 17th are when I hope to be there. Just to keep things interesting, this is the same weekend of Fresno State's Graduation commencement. We are excellent plant waterers and animal feeders and I was just wondering if someone knew of someone looking for a house sitter. Help.