Writing/parenting. I'm close to full time on the time side during school and camp (with near zero time for the last five weeks of summer and other vacations), but not the money side (No where near it here).
It's really interesting to read everyone's answers. Since there's too many to comment on, i'll just add my own to the mix.
I'm a phd student in physics. Since starting my program, i've realized that research science is not what I want to focus on for the rest of my life. Don't know what my day job will be in the future. But I hope it involves science in some way, and I hope it involves writing.
Good to see some scientists in the group. I'm a professor of Biology/Neuroscience, and wear a second hat as a Marine Biologist (research on neural control of locomotion in a couple of marine critters). I went through the professorial ranks (Assistant, Associate, Full) in 24 years at a PAC-10 school (now PAC-12), then found a new challenge with an endowed professorship at a smaller East Coast school with an excellent reputation in Marine Science. I've been here 7 years. I'm closing in on my career goal of 100 scientific publications. I didn't start writing fiction until I was 50. No science fiction for me, I guess my neuroscience background has thrust me into my current interest - psychological suspense.
I'm also a part-time single parent, with an adult child and two young 'uns, the oldest of the latter about to enter the teens. So, I have to manage a house, inside and out, and make sure the two youngest get a healthy dose of Daddy-ing.
Good to see some scientists in the group. I'm a professor of Biology/Neuroscience, and wear a second hat as a Marine Biologist (research on neural control of locomotion in a couple of marine critters).