Pochi-bukuro ぽち袋 - There is a word "Kokorozuke" (gratuity) in Japan. It express your sense of gratitude. When you hand money over to someone you can show your heartfelt appreciation by using "Pochibukuro" (small paper envelop) in Japan.
New York Times Magazine, Redesign, 2011 - Matt Willey
Newsweek redesign prototype with @TinaBrownLM from 2010 with nixed logo and portrait of George Clooney in Sudan by @lynseyaddario #thelogothatgotawayfromme @newsweek @lballant