Via my mother (I have trained her well 😛 ), Costco Amex holders may be eligible for a $300 sign up bonus on the Amex Blue Cash Everyday (see Doctor of Credit’s review of it and a publicly accessible $250 offer here) card. As far as I know, there’s no offer code, but you do have to call in and go through the phone bill-pay flow (you will get redirected to an agent because they are trying to convert customers; note also that they may give you a lesser offer but as with all things, just HUCA). I tried numerous times to see if there were product change offers available over online chat and the reps came up with nothing, but if anyone has success, let us know in the comments.