Foursquare

Underneath the floor mat in front of the menorah, a symbol resembling a game of four square was found.



A foursquare account was found for HanukkahLOL, and places began appearing on the favorites list, with instructions to "Go to any of these places and ask for a secret card. Each store has 2 or 3 cards total. One per customer. IMPORTANT: DO NOT call these businesses just to check if they have the card. Just show up. People that have gone have gotten CAH cards with small boxes cut out. It is unknown how these are to be used at this time.

Theory
Using the folders found in the Locked Cabinet as the key words to mark where the cards should be overlaid, each card matches three words from the letters that are sent with each night's gift.

Each of those three words in each letter only share one letter, so far the letters revealed have been C-L-I-F-T-?-? - suggesting another great name could be Clifton.