As I was looking through my 1e books tonight, I was flipping through my Manual of the Planes. What an awesome reference book that it is, but I realized that it is about as unused as my Dungeoneers Survival Guide. BUT, there are so many good things in this book. I just never really knew how to run an adventure in the other planes.
If you guys want, I would suggest maybe a show segment from time to time where you talk about one of the planes. It would be interesting to hear ideas about how to adventure in Limbo or Tartarus or the Happy Hunting Grounds. I know that you've talked a little about the Astral Plane and the 9 hells before, as well as the elemental planes, but there are a lot of other interesting planes, with novel creatures. Just a thought, as I know you guys like to always keep things new and interesting.