Example, Local farmers in my area love 275 Gallon Caged IBC Tote’s, used ones sell for 150 dollars in the area. I found a person on Craigslist who sells them for 75 dollars a piece about an hour drive from me. After a little on the phone negotiating I was able to pick up 15 totes for 50 dollars apiece. It took the Mrs. and I less than three hours to pick up the totes and return. We kept a few totes for ourselves to harvest rainwater and sold the rest off for a nice profit.
Drive for Uber or Lyft: If you're in a locale where you can find Uber or Lyft (or even one of the many competitors around the world such as China's Didi), you could easily make a respectable income. The hours are flexible and you can work as you see fit, making it perfect even if you currently have full-time employment but are looking to make some money on the side.
As an Instacart personal grocery shopper, you will actually be doing the grocery shopping yourself (so don’t crush anyone’s avocados!). Your compensation depends on several factors, like the average size of your orders and average number of miles driven per trip. You can also get tips in addition to the pay that comes directly from Instacart (most people report an average earnings rate of $15 per hour).