Justin had a good question about organizing his content, wanting a way to easily show just the things he publishes for his Daily Create. This is a job for Categories (to be fair, it could be done jut the same with tags, there’s not a significant difference between them).
I wanted to experiment with showing this via an audio screen cast, which demonstrates how to create categories, how to update existing posts to be included in new categories, how to use them on a new post, how to find the URL for you category page, and how to add a menu item to point to your category.
FYI I made this on my iPad with Explain Everything, made screenshots, annotated them, recorded audio, and upload directly to YouTube. That was easy!