I always kind of wondered why the log files were checked by default... Let's rectify this by unchecking them by default, yeah? Also, unchecking Yahoo Toolbar by default would be nice but there's probably some dollars involved and if it helps keep CCleaner free then, OK!
On a more serious note, I think CCleaner should play the song 'Big Country' by the band of the same name. I haven't heard it in a while.