Check out the Firehouse Subs Name of the Day! You can buy one medium or large sub and get one FREE medium sub when your name is chosen as the name of the day. The names for Saturday, December 23, 2023 are: Any first name that starts with 'FA' or 'LA'. If that's your first name, show your photo ID at any participating U.S. Firehouse Subs today to get your FREE medium sub!