Add a list of your accepted contributions to WordPress Core as a sidebar widget.
A lot of people write code. A lot of people write WordPress plugins. A lot of people write WordPress themes.
Only a handful of people contribute code back to the core WordPress project. Even fewer contribute documentation to the WordPress Codex.
Take a second to show off the patches that you've submitted that have made it into core and the updates you've submitted to the Codex. It's a great way to highlight your coding credentials and back up your resume.