Advice from a small town girl

I've always been pretty good at arithmetic. Not a whiz, you understand, but pretty good. Once beyond arithmetic and into math, however, all bets are off.

But I've been thinking lately about one of the phrases from the past. I'm not sure how old I was, but I remember a light bulb going on in my brain when I understood what "the lowest common denominator" was.

I really love it when the bulb goes on. I wish it would happen more frequently. In fact, I wish it would happen right now.

We all know that the lowest common denominator in our monetary system is the lowly penny. The penny represents (curr...