WordPress theme customization using a child theme (parent theme, Twenty Twelve by WordPress.org). This project was done when I migrated my own sewing blog (The Charming Needle) from Blogger to WordPress.
I used custom post types to create posts specific to different types of projects and list them on their respective archive page. I also used custom fields through the Advanced Custom Field plugin to add metadata specific to these custom post types. This was useful among other things in creating galleries of images already stored on Flickr.