So UPC codes fall in the "I have no idea what the hell they are so they intimidate me" category. As such, I did what I normally do - avoid until it was absolutely necessary. Today it was necessary and honestly figuring this out was a breeze. Even more surprising, my conversations with others in the retail industry really illuminated the lack of information on the subject.
This falls in the "Nothing's Ever as Good or as Bad as it Seems" slogan that sits on my desk.