Outside of friends, family, love, sex, good health and all that I would say my own free time to myself when I'm doing something that puts me in the 'flow' or 'zone'. Usually it has to do with some type of obsession I have at the time. Historically it's been photography, powerlifting, video games, home projects and listening to good music at the same time, binging on tv/anime series. It can be a little selfish with having a family, but it's what I enjoy since my own free time is very scarce unless I sacrifice sleep, which isn't good.