Henry Ford wrote great words about flow and the elimination of waste in his book Today and Tomorrow.11 For example, in Chapter 8, entitled “Learning from Waste,” he said: Saving material because it is material, and saving material because it represents labor might seem to amount to the same thing. But the approach makes a deal of difference. We will use material more carefully if we think of it as labor. For instance, we will not so lightly waste material simply because we can reclaim it—for salvage involves labor. The ideal is to have nothing to salvage.
