Map Esc key in Vim

Question

I\'m a beginning Vim user. I hate pressing the Esc key, which is a little far on my T61. In order to return to command mode. How do I map it to F4?

Answer 1

Just like many Emacs users rebind their "Caps Lock" key to "Control", vimmers rebind their "Caps Lock" to "Escape".

...At least I do. And it works wonders.