A few more options for shutdown with little effort:
Set the PC/Notebook's power button to "Switch Off" in Control Panel>Power Options. The switch does a proper OS shutdown, not a hard power off. (Pretty sure this option was in Win 7 too, so I assume you all know about that one )
On the Start page start typing Shutdown and after a couple of keystrokes the Start and Restart options will pop up
Or, best in my view, put a Shut Down tile on the Start page (and a Restart one too, if wanted); one click and it shuts down.
I am sure there are others but had no need to go further than putting the tiles on the Start page which was, for me, the best option.