Razor-QT environment

sudo add-apt-repository ppa:razor-qt
sudo apt-get update
sudo apt-get install razorqt

gThumb

sudo add-apt-repository ppa:webupd8team/gthumb
sudo apt-get update
sudo apt-get install gthumb

EXIF/MP3 metadata in Nautilus

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install nautilus-columns

in Nautilus: Edit->Preferences

Install GIMP 2.8

sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo apt-get update
sudo apt-get install gimp

Install cinnamon

sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable
sudo apt-get update
sudo apt-get install cinnamon

Install unisettings

sudo add-apt-repository ppa:diesch/testing
sudo apt-get update
sudo apt-get install unsettings

Bluetooth machine name

To change bluetooth machine name create file /etc/machine-info and define in it:

PRETTY_HOSTNAME=YourMachineName