Adding a option Terminal to pop-up menu of Gnome ,handy!
sudo apt-get install nautilus-open-terminal
Adding option Resize Image & option Rotate Image to pop-up menu as a matter of convenience when you choose a picture and click right button of mouse.
sudo apt-get install nautilus-image-converter
Note:You need to restart Gnome to active those 2 plug-ins once you have installed them.