Reselling thrift store finds has become a profitable cottage industry requiring minimal up front investment. It can be a great side gig or a full time business.
It is deceptively simple. Shop at the thrift store of your choice, find some things you are confident will sell on line for significantly more. Sell, ship and pocket the difference.
It isn’t really quite that easy but that’s the basic idea. The nice thing is you can do a little or a lot.