A side hustle is a way for individuals to earn extra income outside of their primary job. This can involve freelance work, selling products online, or offering services like tutoring or pet sitting. Side hustles allow people to explore their passions, develop new skills, and increase their financial stability. Many people engage in side hustles to pay off debt, save for a vacation, or build an emergency fund. Popular platforms for finding side hustle opportunities include Etsy for handmade goods, Upwork for freelance services, and Uber for ridesharing. Overall, side hustles can provide flexibility and additional financial resources.