As I had been mention that Crap Cleaner is one of my flavor software to clean the crap and it is cool that you can keep a portable version in your pen-drive wherever you need to use 🙂
CCleaner is a freeware system optimization, privacy and cleaning tool.It removes unused files from your system – allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it’s fast (normally taking less than a second to run) and contains NO Spyware or Adware!
My pervious post about the Crap Cleaner
http://shawn.genplace.com/index.php/technology/the-crap-cleaner/
Download Link
Click Here
CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system – allowing Windows to run faster and freeing up valuable hard disk space.