Black Friday: Like all great things in America, we have Philadelphia and the service academies to thank

Here's a typical look at Black Friday, via the Twitter Machine:

https://twitter.com/AnnalynKurtz/status/406191778119696385

In reality, Black Friday isn't even a thing anymore -- the stuff can start a week or so earlier (some Wal-Mart stores were beginning specials last Saturday on various items, jumping Black Friday by a full six days). And when you're op…