FYI:
I didn't learn this until Re-Indoc was almost over. (I was a mil-leave returnee).
You get one free giganto Starbucks a day from the Doubletree.
On your way out each morning, stop by the hotel restaurant, tell them what size you want, you fill it yourself, and put your name and file number on the clipboard.
I was buying it in the TK cafeteria. OK, but not strong enough for me.