How to install Gnome Session Fallback on Ubuntu 13.10, 13.04, 12.10, 12.04?

If you hate Unity as much as I, you can turn it off and use Classic Gnome 2 (known as Gnome Session Fallback) which is preferred my many Ubuntu users, who hate Unity and do not accept Gnome 3.

I have been trying a lot to get use to Unity but after several minutes I couldn’t stand it! Usability is none, switching between opened applications is silly and this ugly bar on the left. I will not say any bad words about Canonical developers and will go straight to the solution.

Open terminal and update repositories:

sudo apt-get update

Install Gnome Session Fallback:

sudo apt-get install gnome-session-fallback

After it is complete, log out and choose new desktop environment – Gnome Classic.

This solution works on Ubuntu 12.04, 12.10, 13.04 and 13.04 (probably on the future releases too).