Somebody (possibly an LWer?) proposed showing up to the car dealership without any cash or credit cards, just a check made out for the agreed-upon amount; the dealer now has no choice but to either take the money or forget about the whole deal.
This isn’t entirely true; the dealer could insist that you to go back home and get more money, although it does improve your bargaining position.
This isn’t entirely true; the dealer could insist that you to go back home and get more money, although it does improve your bargaining position.