Categories help a lot in keeping tickets organized in your help desk. But, you might not need a category every time you want to organize loosely related tickets. For instance, all hardware and software related tickets can have their own categories. Whereas, issues related to cameras, keyboards or other items in your inventory might not warrant a category of their own.
Tags can be put to use in those scenarios. To create tags, use the Actions menu and start adding away. As you might now, if you are trying to add already existing tags, auto suggestions will help you speed things up.
The real beauty is, when you come across a tag in a ticket, you can quickly see all tickets that have same tag by just clicking on it. A quick and simple solution for organizing tickets at the micro level, isn’t it?