I have learned that when asked what I would do in a given situation, the most accurate answer is "I don't know." But I can say what I would like to think I would do. My answer would be similar to thenewgreen's, except I would aspire to play music other people made, and draw rather than paint. I also fantasize about reading a lot more and being more serious in studying foreign languages, mathematics, economics and programming. Writing letters too. Oh, and cooking, TNG left that out. Maybe socializing. My revealed preference is revealing. I already have some free time, so the best dispassionate answer is that I would probably do more of what I do now: reading short easy things online, reading and arguing on Hubski, spending time with family, slowly reading books, with some little time spent biking, running, traveling, playing piano and studying.