List Unused Space
Airbnb is illegal in many jurisdictions now but there are other ways to profit from unused spaces. Many homeowners have underused garages, sheds, attics, or basements. It’s possible to lease them and turn them into lucrative storage facilities. Check local laws first because there may be special requirements.

Meanwhile, there are even sharing apps for swimming pools. One man made thousands of dollars from letting his pool online in Oregon. There’s an incredible range of opportunities that are available today. The main barrier to success is a lack of creativity because there are many side hustles out there (via The Guardian).