I hope you had some kind of plan before taking a year off. But maybe you just wanted a break from all the non-stop studying (since you were a child).

There are so many ways... As extreme as: lock yourself in your basement and code for a year, all the way to travel the world. How many countries have you visited so far? If less than 3? Definitely try to double that number.

You want to do crazy experiments (like Justin.tv)? Remember these recent posts about a github project that will accept any pull request? Let people suggest stuff, and do them (and report) [within reason].