Food & Drink National Cheeseburger Day 2026: Charleston-Area Burger Deals for Sept. 18 Bywhatsgoingoninchs@gmail.com September 18, 2026September 18, 2026 Looking for National Cheeseburger Day deals in Charleston? Find free burgers, BOGO offers and discounted cheeseburgers around the Lowcountry for Sept. 18, 2026.
