A notepad app with offline local storage http://xem.github.io/postit
Credits go to @addyosmani for the idea
Golfed by addyosmani, mathiasbynens, beaufortfrancois, subzey, aemkei, xem: https://gist.github.com/addyosmani/d1f3ca715ac902788c2d#comment-1234484