I symlink my ~/.vim directory to this repo. Similarly for ~/.vimrc and ~/.gvimrc.
I use voom (and Vim 8's packages) to manage my plugins. (I used to use git submodules but they turned out to be clunky and irritating.)
If you want to learn more about Vim, I heartily recommend these PeepCode Pluralsight screecasts:
But don't take my word for it. Look at these Tweets instead.
;)