"Buy one, get one free", "Buy one, get one", "two for the price of one", "two for one" or "2 for 1" is a common form of sales promotion. While not often presented to customers in acronym form, this marketing technique is universally known in the marketing industry by the acronyms BOGO, BOGOF, and BOGOHO (Buy one get one half off). Economist Alex Tabarrok has argued that the success of this promotion lies in the fact that the price actually takes into account the fact that two items are being sold. The price of "one" is somewhat nominal and is typically raised when used as part of a buy one get...