In today's fast-paced world, the desire for financial independence has led many individuals to explore side hustles as a means to supplement their income. However, not everyone has the time to dedicate to a full-blown business. That's where passive income streams come into play. Passive businesses require minimal day-to-day involvement but can generate a steady flow of income over time. If you're looking for side hustle ideas that allow you to earn money while maintaining a more hands-off approach, here are four passive business ideas to consider.