just a tip for gnome 3

With gnome 3, some features may be
ambiguous for newbies (like me). So I just report two usual elementry actions that one may need:
1. to shutdown the machine: click on your login session (top right). A textual menu will appear with suspend option in the end. When you click 'alt' button, the shutdown option will appear.
2. if you want to find you tray application (skype, empathy ...), move the cursor to the button right of your desktop.

Good luck.