You've been given an extra day on the calendar (why does it have to be in February?) so what crazy thing are you going to do with it? Four years ago you could have romped through the streets of Berkeley pelting chain stores and banks with styrofoam bricks and spilling coffee grounds outside of Starbucks. Here is the map from their 2004 poster showing the locations of all the chain stores-written sideways upside diagonal for your reading pleasure. I assume that none of these stores are still in business given their actions last leap day.
3 months ago