At present, credit cards can be used as financial management tools. First, credit cards can be used to overdraw the bank's money and enjoy a 50-day interest-free period.

At the same time, this part of the money can be deposited in the bank to earn a certain interest.

If you invest this money, the income you can get depends on the actual situation.

And now credit card consumption is generally discounted, or points will be redeemed when they reach a certain level.