The efficiency expert concluded his lecture with a note of caution: "You do not want to try these techniques at home!"
"Why not?" asked a man from the audience.
"After years of not paying attention, I suddenly noticed my wife's routine at breakfast," the expert explained. "She made lots of trips to the refrigerator, stove, table, and cabinets, often carrying just a single item at a time. 'Hon,' I suggested, 'why don't you try carrying several things at once? It'd be much more efficient.'"
"Well, did your suggestions save much time?" the attendee asked.
The expert replied, "Actually, yes. It used to take her 20 minutes to get breakfast ready. Now I do it in seven."