I usually just work extra hours at work when things are tight, or maybe see some clients at home. Doing massage, it's easy to work a few extra hours and it really brings in a lot of money. I always feel exhausted though when I work extra hours. I've also done a few part time jobs at various times in my life when things are tight. I know it would be a different story if I had kids to take care of and needed to be home, but at this point in my life working a few extra hours seems to be the solution that makes the most sense.
I did sell my hair once, because I had cut it from almost waist length to a pixie cut. I didn't do it because I needed money, but it was nice to get a couple extra hundred dollars for it especially since I would have just thrown it out. Looking back I wish I would have donated it to a charity, but I didn't know you could do that at the time.