1. Participate in the discount activities of the issuing bank. Doing this for a long time can increase your credit limit and enjoy many discounts.

It is better to spend more than the specified number of times, which can reduce the annual fee of your credit card.

3. Try to reduce the cash withdrawal amount, because you need to pay the handling fee and interest.

4. Master the time of swiping the card, and you can enjoy the longest interest-free period by swiping the card on the first day after the bill date.