11. eBay or Etsy Sales
So many people are earning money by selling things online and most of them do it on eBay or Etsy. You can buy things from thrift stores and then sell them for more money on eBay. This is a great way to run a business from home and earn a decent amount of money. The startup cost cannot be determined so easily which is why it ranked last on our list. As it depends on how much money you are willing to spend on buying things and what sorts of products do you wish to sell, we cannot know the exact amount. But you can start with a small number of things and see what happens.