<prompt> Human: Considering standing in front with a sign that says I can help with your groceries and selling it for 500.cash.  <response>: there is websites online that will pay you cash but im pretty sure costco will cash out giftcards for cash. walk in to customer service and ask.my family gets their costco credit card cash back as a gift card and they go cash it at the store for cash they didnt have to spend at the store. 