A friend emailed me and asked if there was a CCleaner type app for Linux. Yep, there is:
BleachBit – The privacy and disk space cleaner for Linux
Many distros have this available within one of their repos (Packman for openSUSE) but you can also download the RPM’s / Deb’s from the BleachBit site.
BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, Internet history, localizations, temporary files, cookies, and broken shortcuts. Designed for Linux systems, it wipes clean Adobe Reader, Bash, Beagle, Epiphany, Firefox, Flash, GIMP, Google Earth, Java, KDE, OpenOffice.org, Opera, RealPlayer, rpmbuild, Second Live viewer, VIM, XChat, and more.