Reselling (Flipping)

Reselling (Flipping) yields a median side income of $500–3,000/month, rivaling the lower end of Bookkeeping (#6) in earnings but requiring more active effort. Buy undervalued items from thrift stores, estate sales, Facebook Marketplace, or liquidation pallets, then resell on eBay, Poshmark, or Amazon FBA. The most profitable categories include vintage clothing ($20 buy → $80–200 sell), electronics ($50 buy → $150–300), LEGO sets ($30 buy → $100–500 for retired sets), and sneakers ($200 buy → $400–1,000). The r/flipping community shares deal strategies daily, but this hustle is 50% less passive than #5's YouTube channels because it demands 10–15 hours per week for sourcing, listing, and shipping.