Here's something to think about this Black Friday while you're waiting in line in the cold at 4am, outside of Walmart, Best Buy, or Target: thank goodness for automated supply chain management systems! It wasn't too many years ago that employees were doing inventory counts by hand and sending them to suppliers, leaving plenty of room for error, which could lead to either a shortage or overstock of a certain product. (I'd be pretty annoyed if I had gotten up at 3am to go get that flatscreen tv, only to discover someone had written down a wrong number, and not enough flatscreens were shipped to the store to satisfy the estimated Black Friday demand!)