How to install Gnome Fallback on Ubuntu 13.04

Ubuntu Unity is nice but for some people who loves simplycity, old Gnome style is way better than Unity. This tutorial will show you how to install the old style Gnome (Gnome fallback) on Ubuntu 13.04. Also, many remote desktop application such as NX only support Gnome fallback (at least old version of NX). OK lets get strated.
To install Gnome Fallback, simply use this command
sudo apt-get install gnome-session-fallback
Once finished, logout and select this old style Gnome from the session list.