The Screen Door General Store has a variety of grocery items, bread, PB&J, some frozen dinners, cereal, milk, fruit, donuts, pasta and sauces, boxes of Mac & Cheese, soda, coffee, tea, h laundry soap, personal grooming items, as well as a wide variety of souvenier type items and toys.
The prices are on the steep side, I wouldn't use them for my total grocery shopping, but it's fine for picking up forgotten items, snacks, and milk.
Anne