title: Data Persistence - Singleton Class
body: <p>I have a singleton class that stores three <code>NSMutableArrays</code>. Each array stores about 4 - 5 items of a custom object I called <code>Program</code>. How can I store those beyond the current application instance?</p>
  
  <p>Should I go with Core Data? I think this is too simple for Core Data. I am already using Core Data for more complex storage in my app. Is there something like <code>NSUserDefaults</code> where I will be able to store those arrays with custom objects and retrieve them easily?</p>
  
  <p>Thanks</p>