This week I added the following snippet to my .vimrc (.vimrc.after if you are using Janus):
map <C-J> :bnext<CR> map <C-K> :bprev<CR> map <C-L> :tabn<CR> map <C-H> :tabp<CR>
CTRL-k to next and previous buffer and
CTRL-h to next and previous tabs.
It is by far the biggest productivity boost I have gotten out of my
Buffer and tab switching has never been that fast and easy.
Macbook tip: remap your CAPS LOCK key to CTRL.