One of the funny episodes of Seinfeld aired in 1997, where Kramer gets fed up with the junk mail that keeps filling up his mail box.
Actually interesting and still valid question now 20 years later, why do we need a physical address in this digital age? 🙂 

When you travel for longer periods of time it can actually be a quite delicate problem to make sure you get any important information that may be sent to your physical address.