Well a couple years ago my answer to this would've been very different, but now I have a wife and I have to give her some consideration. I'd probably just go back to the family business of farming. I would probably only make 60-80% of what I do now but it'd be debt free and I'd be on my own terms. I'd have to become a morning person all over again but I know how to do the work and I find it particularly enjoyable. Plus maybe I could tinker with my dream of a self driving electric tractor a little more.