<prompt> Human: So I honestly dont know that much about credit cards or how they work beyond the very basics you charge money to the card, then pay for that total plus interest at the end of the month?. I was raised by very financially conservative parents who pretty much told me to never get a credit card, but all my coworkers use gas cards apparently. Ive been spending upwards of 200 a month on gas for work, so Im wondering if the rewards are worth it?Thanks for helping a total newbie out.  <response>: You put charges on the card, then you get a statement for the month. As long as you pay the balance before the due date usually 30 days later, no interest is added, effectively giving you free rewards. 