When friends get together or company banquets, collect money by yourself and then swipe your card.

Buy a money fund with a credit card. You can set the fund redemption date two days before the credit card repayment date, which is equivalent to using the redeemed fund money to repay the credit card. You can also earn the difference between the two and get indirect "money" income.

Credit card refund Some airlines stipulate that first-class tickets can be refunded in full cash as long as they are refunded 24 hours before departure (excluding first-class tickets that have been changed after missing the flight). You must swipe your card in the airline's self-built business hall to buy tickets and issue tickets. Other air ticket agencies will charge refund fees for ticket purchase and ticket issuance.

Buy a big mobile phone recharge card. China Mobile's self-built business hall can accept credit card payment to purchase prepaid phone bills, and at the same time provide the provisions for cash refund of phone bills. First, recharge your mobile phone number with a credit card, and then take your ID card and mobile phone card to China Mobile Business Hall to cancel the number and get a refund.

Network false consumption. You can buy goods on Taobao, and then the merchant will transfer money to complete the withdrawal.