I adore non-bill mail. I started sending cards to friends and now we have a little network that sends each other actual cards in, you know, the mailbox.
What do you think of postal mail?
In short, money can be anything that can serve as aI came across an awesome article by Glyn Davies called "A History of Money From Ancient Times to the Present Day" that's worth checking out - and after you read it, think hard about bit coins and whether an unregulated currency is really such a good idea.
• store of value, which means people can save it and use it later—smoothing their purchases over time;
• unit of account, that is, provide a common base for prices; or
• medium of exchange, something that people can use to buy and sell from one another.
From "Back to Basics: What Is Money?"