Reselling (Flipping)

Median side income: $500-3,000/month. Buy undervalued items from thrift stores, estate sales, Facebook Marketplace, and liquidation pallets, then resell on eBay, Poshmark, or Amazon FBA. The most profitable categories: 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. Requires 10-15 hours per week sourcing, listing, and shipping. Storage space is the main constraint. eBay's seller tools and promoted listings have made the platform more accessible than ever.