A year or so ago I worked at a really high paying shitty waitress job. I would leave at 3AM with 300, 400$ in cash. I loved it. I didn't use a bank at all. One, because it was more beneficial to me, on the tax end, to not have a bank account with my cash tips deposited in, two, I never over spent (charge me 30$ for a 1.00$ overdraft? fuck you! 5$ service fee on my account?! fuck you!), and three, I was always able to save someone's ass at a parking meter (i don't have any cash!), getting on the train (i don't have any cash!) or tipping people who can't take cards (valets, airport bag men, etc). By not using a bank account, I was able to shave 5 or 6 thousand dollars off my W-2s and dodged actually having to pay more income tax. Cash is easier to manipulate than cards, and until drug dealers start taking credit, I doubt cash is going to vanish. MDAO - if you really want to, you can. I still live card free and, yes, it makes some things stupidly complicated, (buying plane tickets, basically) but if you value living off the grid as much as I do, you can do it.