Ask HN: What do I do if I take a career break?

I'm a young developer with a couple of years of experience in industry; that is obviously not to say I still have a lot to learn. I am dissatisfied with my job but haven't been able to find a position elsewhere to go to - my dissatisfaction right now is so that I'm thinking of taking a career break, living off my savings for a while until something comes up.

If I was to do that, how would my time be best utilised? I'm looking more for things I could do to better myself as a professional without having a formal job than suggestions about my lifestyle like "go on holiday", etc...