Gnome Shell 3: tips and tricks. Clean & fast!

(edited)
*. Auto login into Gnome 3, and set it as default window manager
1. sudo /usr/lib/lightdm/lightdm-set-defaults -s gnome-shell
*. Install classic Gnome and set it as default window manager
1. sudo apt-get install gnome-session-fallback
2. sudo /usr/lib/lightdm/lightdm-set-defaults -s gnome-classic
*. Restore the old-style scrollbars
1. sudo apt-get autoremove --purge liboverlay-scrollbar-*


0. First of all...
1. sudo apt-get install gnome-shell
2. sudo apt-get install gnome-tweak-tool
3. sudo add-apt-repository ppa:webupd8team/gnome3
4. sudo apt-get update

a. Alternative status menu:
sudo apt-get install gnome-shell-extensions-alternative-status-menu

b. Add new themes:
sudo apt-get install gnome-shell-extensions-user-theme

c. Add the workspace indicator:
sudo apt-get install gnome-shell-extensions-workspace-indicator

d. Classic Gnome menu:
sudo apt-get install gnome-shell-extensions-apps-menu

e. Removable drive menu:
sudo apt-get install gnome-shell-extensions-drive-menu

f. Enable system monitor:
sudo apt-get install gnome-shell-extensions-system-monitor

f2. Alternative (even better) system monitor:

sudo add-apt-repository ppa:webupd8team/gnome3
sudo apt-get update
sudo apt-get install gnome-shell-system-monitor
via: http://www.webupd8.org/2011/10/gnome-shell-system-monitor-extension.html

g. Places status indicator:
sudo apt-get install gnome-shell-extensions-places-menu

h. Dock extension:
sudo apt-get install gnome-shell-extensions-dock

i. Enable native window placement:
sudo apt-get install gnome-shell-extensions-native-window-placement

j. Xrandr indicator:
sudo apt-get install gnome-shell-extensions-xrandr-indicator

k. Enable "Auto Move Windows":
sudo apt-get install gnome-shell-extensions-auto-move-windows

l. Gajim extension:
sudo apt-get install gnome-shell-extensions-gajim

m. Enable "Windows Navigator":
sudo apt-get install gnome-shell-extensions-windows-navigator

Source:
http://elsoftwarelibre.wordpress.com/2011/10/11/instalar-gnome-shell-y-gnome-shell-extensions-en-ubuntu-11-10/
http://www.addictivetips.com/ubuntu-linux-tips/how-to-auto-login-to-gnome-in-ubuntu-11-10-tip/