Reselling items from the Craigslist is a simple way to generate income and start an online business.

Free Money
Flipping items from Craigslist, OfferUp, and other arbitrage sites is a very easy way to make money with almost no overhead cost. In the video above, Gary Vee details a plan to use the free section of craigslist. Taking advantage of this feature can easily bring in an additional $200/week. Keep in mind the money would not be all profit when you factor in gas and labor for a more full scale approach. You must be efficient and set prices accordingly.
Doubling Down
After you’ve successfully sold a few items and get some regular sales, you can reinvest some of the profits buying inventory from other markets like thrift stores, swap meets, and garage sales. By actively acquiring items you can maintain an inventory between the worthwhile freebies on Craigslist and boost your revenue overall. Even further down the line when sales permit you can get a larger storage place or open up to shipping nationwide and branch out into the ecommerce world.