They would make the free-shipping offer permanent, but only for customers who were willing to wait a few extra days for their order. Just like the airlines, Amazon would, in effect, divide its customers into two groups: those whose needs were time sensitive, and everyone else. The company could then reduce the expense of free shipping, because workers in the fulfillment centers could pack those free-shipping orders in the trucks that Amazon sent off to express shippers and the post office whenever the trucks had excess room. Bezos loved it. “That is exactly what we are going to do,” he said.