How do I order multiple BP books?

[Julie Marquez]

I was planning on buying a Bigger Pocket book, and with today's invitation for 25% off with the code July4, I plan on getting a couple. My question is how to I order multiple books so to only have to input my payment information once? It isn't very user friendly to make me put in my credit card information for each book I order from the same website, I must be missing something....