Today's Ruby on snuxoll's post shows you how to overcome a not-so-apparant issue with dealing ruby's Hash class, namely, using the Enumerable#collect method.
snuxoll.com
Life of a rubyist
hash
Donate
Remember, for every $5 or greater donation you get to request how-to/tips'n'tricks list/similar article written, so what are you waiting for? (Keep in mind the effort involved in your request compared to the money you've donated, I'm not writing a guide to all the gcc options for $5).