Looking for ways to make cash? Learn more about what you could do to earn an extra income in as short as one day with these thirty-three ideas. Work around your own schedule and drive for an app-based taxi service. Uber and Lyft are great options for those who are looking for a side-gig or a full-time job, as you decide how often to drive. Your earnings are calculated based on the base amount, time, and distance of the ride. Minimum requirements include:.