Great question! I like to think of the 30 day challenge much like a book. You start with, "Once upon at time..." and when it is over you finish, "The End or To Be Continued..."

The chapters in the middle of the book are the journey you take your listeners on. If you have multiple ideas for a podcast, then break that one book into four. Focus one topic for each week. By time you have completed NaPodPoMo you will have a great understanding of whether podcasting is something you want to pursue beyond the challenge.