title: Find newest objects in ActiveRecord
body: <p>Easy question: I need help writing an ActiveRecord <code>find_all_by</code> statement where I want to order things from newest created objects to oldest.</p>
  
  <p>As a follow-up to this question: If I saved the results into a variable @records. How do I then ask for the next record in it? I want to do something like <code>@current_record = @records.next</code></p>