Do you have stuff in your basement, attic or garage that's collecting dust? If you do, pack up the SUV or car and kids and go to a flea market. You could make a couple of hundred, even thousands, of dollars, depending on what you're selling. You'll want to go to flea markets every weekend or at least every other weekend. Make an event out of it, and show your kids how easy it is to earn money selling their stuff.
P2P lending started in San Francisco with Lending Club in mid-2000. The idea of peer-to-peer lending is to disintermediate banks and help denied borrowers get loans at potentially lower rates compared to the rates of larger financial institutions. What was once a very nascent industry has now grown into a multi-billion dollar business with full regulation.
If you have specialized knowledge in a certain topic, you can put together an online course to teach others. For example, if you have experience in real estate investing, you can create an online course “Real Estate Investing 101”. The benefit of an online course is that once you create the course material, you can sell it to as many people as you want.