[Nervetattoo]

Its amazing that after having read probably hundreds of Vim tutorials / guides every user is able to learn something completely new from every one of them. It sure scales.

This one brought ^T and ^D for indenting in insert mode to me, and starting with -o/O as argument for opening multiple files in splits.

[zmmz]

One of the best resources for learning more about vim is the various .vimrc files on github

A simple http://github.com/search?&q=vimrc is a goldmine for mastery.