Here's a neat little thing, and an example of Twitter being used well for once: @congressedits. It sends out a tweet every time an anonymous English Wikipedia editor with an IP corresponding to any Congress office makes any edits. Thus far, it mostly just shows that some Congress staffers likely have obscenely dull jobs.

The code behind it, a script called anon, is here. It's in CoffeeScript, with which I'm not terribly familiar, potentially due to my general suspicion of Javascript. It may be worth exploring further for small coding tasks in the future.