Not sure why you think anyone here would know more than the TSA agent you spoke to, or why you didn't check details with that person when you had them to speak to. We'll assume you are flying domestically, because if you're flying internationally you're probably out of luck without a passport....in which case what they want is anything that can conform who you are.
I'd bring all the ID you have, even if it's expired. Birth certificate, the ID photocopy, credit cards, bank card, a student card, a library card (where I am you have to show ID even to get one of those), even if it's expired. I'd bring rent receipts, pay stubs, phone bills, tax returns, anything at all that might show who you are and where you live. I'd also get to the airport a couple of hours early, I mean even earlier than usual, so they have time to paw through all your stuff, make phone calls, search documents, and look through your phone.