Just got a Pebble. Now what?

Just got a new Pebble yesterday, and while I've gotten notifications set up (and already moved to an alternative notification system, I'm rather at a loss of what else to do with it. I know for the most part, "notifications" is really all Pebble does, but what else should I install on there? I noticed Dieter posted his app selection a while back on Twitter, here:

I've added Glance (which is less useful than it might be as all my texts come in over Google Voice), Notification Center, and Pebble Locker. I'd love a Pedometer or some sort of general fitness tracker that mostly focuses on walking, but for the most part it seems those aren't ready yet. What else should I add, and why?