Mark Otto:

Poole is the Jekyll butler. It’s a fully furnished Jekyll setup, designed to be a consistent and flexible starting point for Jekyll projects.

I wish I would’ve had Poole when I made the transition to GitHub Pages and Jekyll. Out of the box, it offers layouts, a custom 404 page, RSS feeds, posts, and an example page.

Along with Poole, Mark released two excellent Jekyll themes today: Hyde 2 and Lanyon.