I've setup the Pi in my house, but I have no extra screen and currently haven't installed any VNC tools.
So my question is, how do I kill the GUI from terminal when I've rebooted the Pi? This is something I want to do manually each time I reboot, instead of writing a script or permantly disabling anything. This is because, if I ever need to pop a HDMI cable back it, I want to just reboot and everything works.