Minor issue. When you highlight text in a terminal then hit the right click button (on mouse or keyboard), a menu comes up for copy, paste, etc. But you can't hit "C" to copy, "P" to paste, etc. It's just one of those little piddly things that adds up to a lot of time over a lot of users.
The keybinding for copy and paste are shift+ctrl+C and shift+ctrl+V, as shown in the Gnome Terminal shortcuts section in Preferences. It can't just be Ctrl+C, for instance, because that sends a SIGINT (Signal Interrupt) to whatever the current running process is and terminates it.