One advantage of using a credit card is

Convenience: You don't have to worry about how much cash you have on hand. Just remember that you can always use a debit card instead. With a debit card you won't be in danger of accumulating debt that will be subject to high interest charges if you don't pay it off each month, like you would with a credit card. Remember to keep track of your checking account balance to be sure you can cover what you're buying.