<prompt> Human: I planned on using this card for my gas and paying it off monthly as well as quarterly cash back categories. Ive already used the card on some purchases that I didnt budget for. Nothing extremely expensive but I know it will add up fast if I dont stop. Does anyone have advice on how to use this card responsibly?  <response>: Look at it this way. If you wouldnt buy it with cash, dont buy it with card. Dont try anything crazy like maximizing rewards. Look at the rewards portion as a small bonus. 