fzf is a command line util for fuzzy finding whatever old crap you pipe into it. I’ve been using it for a better reverse search (run the install script in the fzf repo).

I wanted a fast way to browse a vim cheat sheet from inside vim. I made a file and filled it with the cheats from vim.rtorr.com. Then I mapped F1 (after disabling gnome terminal help) to cat ~/vimcheat | fzf.

#.vimrc
:map <F1> :! cat ~/vimcheat <bar> fzf <CR>

fzf cheatsheet demo

screencapped with byzanz