Specifically, "C-x v v" is C-x (extended commands), v (version control prefix), v ("next action": do the next logical step for the current buffer, usually commi

Specifically, "C-x v v" is C-x (extended commands), v (version control prefix), v ("next action": do the next logical step for the current buffer, usually committing). C-c twice is used in several modes to mean "save and close out". It's also what you hit to send an e-mail you're composing, for example. Holding control and pressing c twice is pretty easy, just like whacking v twice for "next action". (C-c usually prefixes commands specific to the buffer's mode, such as "send the definition under the cursor to Python".) If you ever forget any of this, you can type "C-x v" and then C-h (Help) and it will list all of the keyboard shortcuts prefixed by C-x v, i.e., all shortcuts related to version control. (I find VC shortcuts go straight to muscle memory, but just in case.) What NikkiA says above about those five keystrokes being a 10 page wizard in other systems is spot-on.