I do... Im sick of shooting everything at around f4, especially when I want some more depth of field. Have you tried any of those bulb type sensor cleaners yourself Mini? I'm more temped to just take it in to a camera shop and have a professional do it.http://www.cleaningdigitalcameras.com/index.html
Do not do, until you have read it all. This is high risk, but you can do it. It's what I do.