* remap jj to ESC: imap jj <Esc>
* align on "=>" with (Tabular plugin): nmap <Leader>t> :Tabularize /=>\zs<CR>
* for project-wide search (and replace), I recommend EasyGrep plugin ([1] see options)
[1] https://github.com/sohooo/vimfiles/blob/master/vimrc#L384