This Gen Zer’s Stylish Side Hustle Earns About $20,000 a Month and Paid Off His Parents’ $200,000 Debt: ‘I Enjoy the Hands-Off Nature’ by TopTechTrends Ray Cao went from working as a barista for $8 an hour to being a successful seller on online marketplace StockX. About The Author TopTechTrends See author's posts