I have no idea how I came across this (really), but it sounds like so much fun. Kind of like geocaching for those of us without a GPS or the means to get one. I like the idea of an urban scavenger hunt, of getting to leave my mark on something that was left by someone I’ll never know and will be seen by people who I’ll never meet. I can imagine trying to be stealthy, sneaking around buildings or digging around places I shouldn’t necessarily be. I guess it’s time to brush of my trench coat and get some dark sunglasses. You can check it out here:

http://www.letterboxing.org/