<prompt> Human: Is it good to use your credit card for everything except for Rent and Utilities? I used to use my debit card for everything until I got a good cash back. Is this a good idea? Or are there still some things that arent worth the cash back?  <response>: As long as you have the discipline to not overspend and pay it on time, a credit card is BETTER than debit in many ways: rewards, extended warranties, much better security. 