Hi ,
I am using Crap Cleaner for a long time. And it's helps me greatly.
There's one another ineresting tool for using at home and at office PC's.
This is how Rohos Welcome 1.20 works. Rather then entering one's logon name and password upon startup, a person simply inserts USB drive. The drive contains login and password information that is entered automatically. + automatic desktop locking upon USB Key removal.
download: http://www.rohos.com/welcome-screen