I am currently flipping back and forth the light blue pile of sticky notes, the kind that are glued together in such a way that the sides glued are alternating and are opposite each other. It is easy to flip between these fluttery little flat blue wings. Just open the pile a little bit, but so that the pile itself is sideways, and hold the very bottom pieces of the sticky notes: right side with the right hand, and the left side of the pile with your left. Then lift up the left or right side of the pile of sticky notes, alternatively, up in the air, so they automatically flip back and forth between the two sides of the pile. I keep doing this, over and over again so it forms a quiet fluttery rhythm.