Answer:
Build credit history
Step-by-step explanation:
Credit cards can built good credit history when paid off regularly. This is why if you have credit card debt, you should try to make your monthly payments as regularly as possible, ideally in the due date or before.
This will build a good credit history that will act in your favor when asking for other type of credit like mortgages, because banks will see that you are a good customer, and will trust you.