It’s one of the oldest and most proven ways to make money – buy low, sell high. The buy low part comes from searching garage sales, estate sales, and even thrift stores to find items that are in good condition (“gently used”) but selling well below what they would if they were brand-new. In this way, you might be able to acquire an item for $5, and later sell it for $50.
While you won't make a lucrative sum by selling your photos online (unless you're a gifted photographer with in-demand images), Shutterstock will pay you 25 cents every time one of your images is downloaded, according to its website. If you earn $500, then you'll receive 33 cents per download; if you earn $3,000, you'll receive 36 cents per download; and if you earn $10,000 or more, you'll receive 38 cents for every download.