After the event, I did a few geocaches in the Warminster area and then headed over to Conshohocken for a few more geocaches. "Smart Phone Reverse Geocache" is an interesting puzzle cache. It uses geolocation and only tells you how far away you are from the cache site, so you have to keep refreshing the page on a smart phone. I don't have a smart phone but I figured it out at home by editing the URL until I got zero distance. Then it was pretty straightforward when I got to the area this afternoon.
Ducky's Winter Shindig, III (Pennsylvania)
Ma Bell (Pennsylvania)
Little Neshaminy Creek Cache (Pennsylvania)
Smart Phone Reverse Geocache (Pennsylvania)
SRT - 93 (Pennsylvania)
SRT - 92 (Pennsylvania)