The Ubuntu Tweak provides some desktop and systems configuration options which the default Ubuntu settings does not provide.

 

To install Ubuntu Tweak, we need to add the ppa repository. Use the following commands to install Ubuntu Tweak.

sudo add-apt-repository ppa:tualatrix/ppa  
sudo apt-get update 
sudo apt-get install ubuntu-tweak

Then you can find the Ubuntu Tweak icon in Dash Home.

 

One useful option is the desktop show/hide option. It is very common for Mac users and now you could have it in Ubuntu too.

 

Done =)

Reference: Top things to do after installing Ubuntu 12.04 LTS Precise Pangolin