you can also use the "locate" command, similar to the find command.
to use either, you may have to create a database of your system. relax though, it is VERY easy to do, as root user (type "su" followed by your administrator password) type "updatedb"
after a little bit of time looking around your system and making up the database, you will get the prompt back. then use the locate or find command to your heart's content.