ATI
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install fglrx
Dodge windows and minimize on click for Unity
sudo apt-add-repository ppa:ikarosdev/unity-revamped
sudo apt-get update
sudo apt-get upgrade
LibreOffice
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice libreoffice-l10n-it libreoffice-help-it
VLC
sudo add-apt-repository ppa:videolan/stable-daily
sudo apt-get update
sudo apt-get install vlc
GIMP
sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo apt-get update
sudo apt-get install gimp
Ubuntu Tweak
sudo add-apt-repository ppa:tualatrix/next
sudo apt-get update
sudo apt-get install ubuntu-tweak
Calibre
sudo add-apt-repository ppa:n-muench/calibre
sudo apt-get update
sudo apt-get install calibre
jupiter
sudo add-apt-repository ppa:webupd8team/jupiter
sudo apt-get update
sudo apt-get install jupiter
fogger
sudo add-apt-repository ppa:loneowais/fogger
sudo apt-get update
sudo apt-get install fogger
fogger facebook app
sudo add-apt-repository ppa:fogger-app-authors/ppa
sudo apt-get update
sudo apt-get install facebook-fogapp wunderlist-fogapp
wine
sudo add-apt-repository ppa:ubuntu-wine/ppa
sudo apt-get update
sudo apt-get install package name
Cinnamon
sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable
sudo apt-get update
sudo apt-get install cinnamon