Razor razors were the most common form of shaving before the 20th century and remained common in many countries until the 1950s. Barbers were specially trained to give customers a thorough and quick shave, and a collection of straight razors ready for use was a common sight in most barbershops. Barbers still have them, but they use them less often. Straight razors eventually fell out of fashion. Their first challenger was manufactured by King C. Gillette: a double-edged safety razor with replaceable blades. Gillette's idea was the use of the "loss leader" concept, in which the razors were sold at a
Razor and blades model the disposable safety razor and founder of Gillette Safety Razor Company, Gillette did not originate this model. The urban legend about Gillette is that he realized that a disposable razor blade would not only be convenient, but also generate a continuous revenue stream. To foster that stream, he sold razors at an artificially low price to create the market for the blades. But Gillette razors were expensive when they were first introduced and the price only went down after his patents expired: it was his competitors who invented the razors-and-blades model. This model has been used in several businesses for