What to do after installing ubuntu

Change keyboard numpad key from comma to dot (at "keyboard layout options):
Do it customizing the "numeric keypad delete key behavior" from default to "four level key with dot". (On Ubuntu 13.10+, http://mikewilliamson.wordpress.com/2014/03/31/changing-keyboard-layout-options-in-ubuntu-14-04/)
Above step not necessary anyone, for ubuntu 14.04 lts.

Install terminator:
sudo apt-get install terminator

Update ctrl+alt+T shortcut:
Search for keyboard, go to tab shortcut. Then create a new shortcut (it will override the default).

Install the GPU:
http://lucastipss.blogspot.com.br/2013/11/how-to-install-my-gpu-nvidia-gt-630m.html

Make the power savings and low temperature configs:
https://help.ubuntu.com/community/PowerManagement/ReducedPower

Configure the two-finger scroll:
Search for "Mouse and Touchpad"

Install Pre load (to speed up the computer using memory pre loads):
sudo apt-get install preload

Install java
http://lucastipss.blogspot.com.br/2013/11/how-to-installupdate-java.html

Install KeePass
http://lucastipss.blogspot.com.br/2013/12/how-to-install-keepass.html

Customize firefox
http://lucastipss.blogspot.ch/2015/07/features-installed-on-firefox.html