How much money people are really earning from Uber, Airbnb, and 7 more side hustles

If you've been itching to make some extra cash outside of your regular 9 to 5, then you may have already considered signing up with Uber, Airbnb, or TaskRabbit. Companies like these have made it easier than ever to make a quick buck on your own time. But how much extra dough can you really make …