A long time ago, when there was only the Post Office doing the majority of shipping, I read this joke. A man goes into the hardware store and wants to buy an axe, the store has it priced at $20. The man says, I can buy that "mail order" for $16. The shopkeeper says, OK, that will be $18. Man says, what do you mean? Shopkeeper says, $2 for shipping. Man says, OK, forks over the $18. Then the shopkeeper wraps up the axe and puts it on the shelf behind him saying, come back in two days, it will be ready to be delivered. The man coughs up the additional $2.