That sounds like so much fun!!! My sister and I recently did the same thing (although not quite so far or so many shops) and we had a great day. Laughing, crying, talking, eating, and singing at the top of our lungs along with the CD - all of it! We have another sister who lives across the country from us (we are in the Northwest and she is in Maryland), who also is an avid quilter. Whenver we are together, quilt shops are always on the itinerary. Or we have virtual shop hops - emailing links to different sites - or Skyping to show our latest creations.
The three of us, along with our sister-in-law, recently did a row robin project. We mailed fabric across the country and our sister mailed her rows along to the next person. A great way for us to connect - as sisters, as quilters, as friends.
So, here's to the Sisterhood of Quilters!!!