title: Can I execute custom actions after successful sign in with Devise?
body: <p>I have an app that has basic Devise authentication.  After sign in, I would like to look up the user account (user belongs_to account, account has_many users), and store that in the session so that it is available like the <code>@current_user</code>.</p>
  
  <p>What is the rails way of storing session in formation like this?
  Is there a hook I can use with Devise to execute code after successful sign-in?</p>