title: How to save a collection for later use in Magento?
body: <p>I want to write a cronjob in Magento that loads a product collection following certain parameters and saves it somewhere I can use in a cms/page.</p>
  
  <p>My first approach was to use Magento's registry, but that doesn't work, ie a simple</p>
  
  <pre><code>Mage::register('label',$product_collection);
  </code></pre>
  
  <p>... doesn't work, as it seems "label" is not available in Mage::registry in my PHTML file...</p>
  
  <p>Can someone point me in the right direction?  Is this the correct approach? If so, how to make it work; if not, how to do it?</p>
  
  <p>Thanks in advance!</p>