The grid layout is popular for convenience stores because it features aisles in the center of the space and refrigerators or food service along the back wall or around the perimeter. Shoppers will need to walk down or past the aisles to buy their sandwiches, hot coffee, or cold beverages (and may be tempted to make additional purchases along the way). Keep in mind that shoppers tend to move in a counterclockwise direction in a store, so place premium or popular products to the right of the entrance inside the store (aka, the "power wall").