Hey Reddit, what's the most creative way you've made money?

I personally made a "business" with my friend and we go to people's houses, and take stuff from them for a fee, and then depending on what it is, we resell it and make even more money!

For example, if someone wants to move a big piano, i'll charge a hundred bucks and take it from them, and then sell it to someone else for a couple hundred and make about 300 or 400 bucks off of it!

Oh, I also remember reading a story about Basshunter making money when he was younger by fishing golfballs out of the country club ponds or whatever and then selling them and making a bunch of money out of it!

Well Reddit, what creative ideas have you/do you use to make money!