My kinda dude. Read the article if you haven't already. He's going to big events and absolutely cleaning up, literally and figuratively.
I find so much cool shit to upcycle, fix, sell, whatever on the side of the road. Go anywhere humans gather for an event and you can haul home loads of goodies. After the 4th of July fireworks on the river we filled the car with brand new chairs, toys, floaties, all sorts of things.
If I were motivated enough, I could make a living picking trash. Had a friend making $400-$600 a week fixing up trashed washers and dryers after work. Another couple made $400 every other weekend at their garage sale. "We steal our neighbor's trash and sell it back to them." LOL, they would roll out at 6AM, twice a week on trash day, fill the truck and give away whatever didn't sell by 2PM. My wife is clocking $200-$300 for a few hours at the flea market, and we haven't even got serious yet.
I grab shit on the side of the road. Got two nice ceiling fans for free last week. (Lights stops working because the US required voltage limiter burns. Cut it out, free fan.) I've replaced nearly every shitty plumbing and electrical device in the house for free. (OK, the sweet new hall light was $1.) Got two bikes for my kids that will take $100 each in new parts and will end up mostly new. Found two nice carpet cleaners that were used once and tossed, need to clean them and sell. Same place chunked a brand new, white, glass-sided mid-tower with factory and upgraded fans. I can go on forever with these tales. And this is all in my spare time.