I'm mostly here though to say thanks for the reminder about `.horse`, which I haven't seen since my friends and I would go on domain-buying blitzes and host static pages with repeating backgrounds of random images on them, in college.
In all seriousness though, I like splitting my projects between two domains: .sonnet.io for the more serious stuff .potato.horse for anything that I might not want to put on my CV.
(it's a good tradeoff between keeping one domain for everything and buying vanity domains en masse - which I used to be guilty of)