Have you ever bought online? Or better, how often do you buy online? Even if you have never bought online, you know that in fact all the stuff available to us offline is managed and mostly ordered online. Some years ago, with the rise of broadband and the popularisation of digital means of communication such as e-mail and instant messaging, many people and internet experts advocated the death of postal services. But what has actually happened is that these services, alongside credit card operators, became the big enablers of global e-commerce. Millions of small packages are sent out everyday to customers in all corners of the globe, containing all kinds of goods.