The previous tutorials covered the most important handles. Understanding those handles will provide you with the knowledge you will need to handle most all of the situations you encounter. However, there are many other handles that are used and you'll eventually run into them. So, it is a good idea to know these other handles so you'll know what they're all about when you run into them. At the end of this tutorial, there is a list of the handles the major pages in Magento use.