Yeah, definitely. Since jumping from full time Java to full time Python a few years ago I've learned this lesson the hard way a number of times.. It's definitely worth naming for grep-ability to ease refactorings. I'm sure this post will garner at least a few STATIC TYPING > SCRIPTING LANGUAGE comments, but I think that's short sighted. There are definitely advantages and disadvantages to both. Refactoring and code-findability is where static languages shine. We're lucky that it's a relatively simple problem to solve in dynamic languages via thoughtful naming and unit tests.