Let's not forget that simple is good. In fact, let's modify that maxim and say a simple sandwich is good. There doesn't need to be anything complicated about a sandwich. Nothing fancy. A sandwich is not one for black-tie events. No, it's a food generally more at ease being blue collar.
Oh, elaborate, expensive sandwiches can be good, but at its heart, a sandwich is straightforward: two pieces of bread with filling between them. That's it. It doesn't have to get more complex than that.
Source: http://www.arkansasonline.com/