Autonomous vehicles promise a future in which passengers are free to use their time productively (working, for example). And they can park themselves (or be part of a shared pool) which saves yet more time in the morning rush. Coupled with faster journey times, the incentives to live further out of town will increase significantly.
What if a company could be headquartered in a persistently mobile vehicle?
And there are businesses that exist right now to receive mail and then scan and electronically forward it.