Build something hard. Toy apps teach you how to use libraries and google error messages. Building something will force you to spend time thinking about how not

Build something hard. Toy apps teach you how to use libraries and google error messages. Building something will force you to spend time thinking about how not to code yourself into a corner, how to structure your app and how to be efficient. It will also give you an outlet to put all the things you lean in books/railscast etc into practice.