You're building a Rails app and want to send SMS messages, but you think it might take some time. However, with Twilio's Ruby helper library, you can start sending SMS messages quickly. To begin, install the library using `gem install twilio-ruby`, then open an IRB session and require the library. Next, instantiate a REST client using your account sid and auth token, which are available in your Twilio account portal. You'll need to provide three arguments: the recipient's number, the sender's Twilio number, and the message body, wrapped in a hash and passed to the `client.messages.create` method. Once you've done this, you can send an SMS message and explore more possibilities with Twilio's REST API documentation and Ruby helper library tutorials.