Your credit card can be used for many goods and services, but there are some things you should definitely not pay for with a credit card. Your credit card can be used for many goods and services, but there are some things you should definitely not pay for with a credit card. A credit card allows you to pay for things similar to the way you might do with a debit card, cash or cheque, however there are some key differences you need to be aware of before making a credit card application.