Get the GUID of a SharePoint List

I usually adopt this easy way of finding the GUID of a SharePoint List:
Go to the List or Library settings --> then right-click on the “Audience targeting settings” or “Information management policy settings” links and choose Copy Shortcut.
Paste this Copied Shortcut in a notepad.
You get a URL like this:
http://stdemo:36068/eaTest/_layouts/ListEnableTargeting.aspx?List={d50cb13c-4cf2-4569-9e5c-b9363c39bdb9}
The one in bold red between the braces is your List GUID