An efficiency expert concluded his lecture with the warning: "Don't try these techniques at home."

"Why not?" asked a member of the audience.

"I watched my wife's routine at breakfast for twenty-two years," he explained. "She made up to ten trips between the fridge, the stove, the toaster and the table, almost always carrying just a single item at a time. One day I told her: 'You're wasting too much time. Why don't you try carrying several things at once?"'

"And did it save time?" asked the man in the audience,

"Yes it did," replied the expert. "It used to take her twenty minutes to make breakfast. Now I do it in ten."