Compose a Vim quine!
The edited sequence (the first version was mangled).

2 A 2 A Esc 2 A 2 A Esc 2 A 2 A Esc

2 A 2 A Esc  2 A 2 A Esc 2 A 2 A Esc

2 A 2 A Esc 2 A 2 A Esc  A : w q Enter 

Esc Backspace Backspace Backspace
Backspace Backspace : w q Enter 

Should do the trick, if I'm counting my keystrokes correctly. No wait, is the escape key allowed?