Makes your ruby code look awesome.
https://github.com/tdm00/sublime-theme-railscasts
Useful to convert variables/functions from snake_case to camelCase, as I frequently end using snake_case in coffescript.
Just hit ctrl+alt+c
(twice here, I don't know why) on selected snake_case to turn it into camelCase.
https://github.com/jdc0589/CaseConversion