https://www.ted.com/talks/a_j_jacobs_the_evolution_of_the_coffee_cup_lid

• In your opinion, what was the original purpose of the coffee cup lid?
• As new-and-improved variations of the coffee cup lid were invented, what problems or areas for improvement did these new lids address?
• What lesson can one take away from this video, in regard to understanding the concept of "finding opportunities for improvement" (improving an organizational process, for example)?