The greatest thing since sliced bread. We’ve all heard and probably used the famous adage, and as transformative as that innovation was, to me it leaves out half (at least) of the equation – that is, everything that goes between those slices. Yes, I’m talking about the sandwich. Without the filling, all you have with sliced bread is … thinner bread. There are about as many reasons to love sandwiches as there are ways to make them.