You've likely heard about the gig economy but might be wondering exactly what it entails. It's easy to assume that driving for Uber or renting your house through Airbnb are the extent of your options, but the gig economy actually offers a much wider slate of opportunities. Whether you have a 9-to-5 job and are looking to pick up some extra income, or you're a recent graduate who's eager to earn as much as you want on your own time, the gig economy...