Here is a tip about how to navigate in GNOME-the fast way. While on the desktop (with no window focused), press the / key to open the Nautilus navigation bar.
To navigate to a specific location type the folders path in the bar.
Also, you can navigate to the special locations, using the paths as they are presented on killer tech tips:
Opens the CD Writing Window.
Shows Computer, lists the disk partitions
Lists the available fonts.
Connects you to the specified ftp address.
Lists network locations.
Opens the Samba (file sharing) Window.
Opens the System Settings Window.
Lists the available GNOME themes.