The best thing since sliced bread

How many times have you heard that expression, and wondered why it exists? Why is sliced bread such a big deal? Well, generations of school children and workers who had cornbread or biscuits in their lunch  buckets could tell you. The great thing about sliced (loaf) bread is that you could use it to make sandwiches and put a whole list of things between the slices. It made lunches much easier and more enjoyable.