The widespread advent of money-back guarantees and one-price policies were symptomatic of a major transition in merchandising history. As trade grew and retail stores multiplied, standardization of terms and practices became apparent. Before 1864 Champaign-Urbana merchants had made little progress in developing a policy of standard prices. The postwar years brought increasing competition at the retail level, and the use of the money-back guarantee spread. When this practice became widespread, a one-price-to-all policy became essential. Some old-time merchants continued to haggle with customers, and barter trade in country produce created complications, but by the early 1870's the integration of one-price policies and money-back guarantees had been generally accomplished and the way paved for the advent of mass distribution.