I've written down a ton of different things I could do... Paying off debt (student loans, and other) is high on the list, but wouldn't provide much change as far as my day to day life goes. But as stated above, my stress level would probably come down quite a bit which could indirectly cause a positive change.
Other things I've considered are traveling, actually moving again, starting some kind of small business, roth IRA (and all sorts of other possible investments), taking a ridiculous trip to Vegas. Using it to take some time off of work, as there's a writing project I'd like to work more on... And then there's what I did last year, and the 2 years before that... Nothing, just keep adding to it for another year.