Go, Ruby, Bash, javascript, coffeescript - I try not to work with 2 languages at the same time - Try not to carry paradigms over wrt var names, module functio

Go, Ruby, Bash, javascript, coffeescript - I try not to work with 2 languages at the same time - Try not to carry paradigms over wrt var names, module functions, deployment options - Keep a single editor (vim) for all of them - I might need a few minutes to 'warm up', specially when dealing with go-routines, threads or a magical change in syntax (ex: from Javascript to Coffeescript) - Warm up gets harder if I don't touch certain language for a while. Ex: Focusing on a single language for 1 - 2 days makes me extremely comfortable with language X, but harder to switch to language Y