Apple Mail users are lucky. We are blessed with over 70 pre-set keyboard shortcuts to make our work faster and more productive. After a while, “muscle memory” takes over and you don’t even have to think about it.
If you don’t like the pre-sets, it’s easy to change the defaults or roll your own.
Why not take it further? Fraser Speirs posts 
on MacDevCenter about wrenching every inch of productivity goodness out of his function keys. He quite likes Yojimbo too, I notice.
