Throw in the terms healthier and ecofriendly, and the result is a trifecta of hip especially since today is Earth Day. 도시락을 싸는 것이 이렇게 많은 것을 상징할 수 있을 줄 누가 알았겠어요? Its every penny counts, says Kevin Wehr, an assistant professor of sociology at California State University, Sacramento.