https://sites.google.com/site/easylinuxtipsproject/first
$ sudo nano /etc/sysctl.conf
Scroll to the bottom of the text file and add your swappiness value
# Decrease swap usage to a more reasonable level
vm.swappiness=10
$ sudo apt-get install gnome-session-flashback
Log out. In the login window, click on the Ubuntu logo next to your user name (see the screenshot below):
Then click on GNOME Flashback (Metacity). Note: don't select GNOME Flashback (Compiz), because that also has 3D effects, and you want to get rid of those.
Disable advertisements in the Dash and normalize the appearance. Ubuntu shows advertisements in the Dash, whenever you type a query in the Dash.
Click on the grey Ubuntu logo (Dash home). Query: privacy
Click on Privacy - tab Search
Put the slider at OFF.
Click on the grey Ubuntu logo (Dash home). Query: appearance
Click on Appearance - click on the tab Behavior
Check:
Add show desktop icon to the launcher