But oh well. I don't know the answer. :) I am going to the PO in a few minutes to send off a few books. Someone ordered 4 for 1 and I was wondering on that package. Can I print DC from PBS and then take it to the PO for the postage? Or do I have to buy the DC from them? How does that work?

Sure you can print PBS DC.  DC is the same price whether it's for one book or four, so it doesn't matter.   Just print the mailing label for the one book that was actually ordered and put PBS DC on it.

One thing to be careful of is that it doesn't default to First Class on the label.  You may need to change the weight of the book to a heavier weight so that the system will print Media Mail on the label.

Colleen, you can also use PBS postage to mail those books.  Weigh them all together and put that weight down for the books.  You can then print both the postage and the DC at the same time ~ one label for all four.

I can't weigh them all, I had to take them to the PO because I have no scale at home. Trust me, I am buying one now. I hate the PO.

Just weigh your package at the post office; sometimes they have scales out in front (in this case you wouldn't even need to talk to a postal worker).

Then come home, put the weight in for the wrapper and print. Voila!

I also need to buy a scale.

No question is a dumb question ;)