Rakuten is my go-to for earning Cash Back while I shop at thousands of stores online—over 3,500 to be exact! It’s totally free to join, and the best part is, you actually get paid just for shopping. The stores pay Rakuten a commission for bringing in shoppers, and Rakuten gives you a piece of that back as Cash Back. You’ll get a payout every few months, plus a bonus when you sign up and make your first purchase.