A few months back I started receiving letters from American Express addressed to someone else. I've been writing "return to sender" on them, with a note that the person doesn't live here, and dropping them back to the post office to send back. On last week's letter I added a note demanding they send no more. Well of course this week yet another one arrived. So, I opened it and will share the contents with the world. I have never had any dealings with American Express via a credit card or any other means. I have no idea who T O'DONNELL might be, and no idea why they think he lives at my address. My question: Should I do anything, or just ignore it?