def save_response_to_file(self, response, filename):
        """Saves the body of the last response to a file

        @param filename: Filename to save to
        @return: Returns False if there is an OS error, True if successful
        """
        try:
            last_response = self.get_last_response()
            with open(filename, 'w') as f:
                f.write(last_response.content)
        except OSError, e:
            return False
        return True