I fix computers on the side but they have gotten so cheap that I often tell a potential customer to buy a new one if the part needed is more than $100 instead. Cleaning up after virus infections or cleaning up used pc's & laptops people acquire is about all I do. Freebies for relatives are much more common than paying jobs, though.
I'm thinking of going through the house, attic, garage & storage shed and listing anything we haven't used or displayed in the last 5 years on craigslist. Mug collection, wooden wagon wheels, Christmas decorations, tables, beds, etc.
My oldest son goes to auctions and buys boxes of stuff. He takes out whatever was in the box that he wanted and lists the rest of the stuff on craigslist. He does a lot of bartering also.