Shortages, stockpiling and Blackjack stamps

I went to the post office today to get stamps for my Christmas cards that I need to send.  I asked, with hope, while not expecting an affirmative answer, "Do you have any Christmas stamps?" and the postal clerk replied,

"We are out of stamps."

As in....it's December 7th and there are no stamps left and none expected any time soon.  She told me to bring in my Christmas cards and she would need to dial in the postage, one by one, and print off a postage label.  I told her

"I send 275 Christmas cards."

She said (above the gasps from the fellow customers in the post office), "That's okay Ma'am....I can do it." 

But another clerk said, "There may be some stamps at the 7 Day Store's cash cage."

So I ran over there to buy what they had.  All that were left were 5 sheets of "Celebrate" stamps

and 8 sheets of these very classy, just screams holiday, deck of cards stamps. 

I bought the last known stamps on base.  Living here is really weird sometimes.