BK Magazine Marginally Unethical Life Hacks
Posted by Jeevan Sivasubramaniam, Managing Director, Editorial, Berrett-Koehler Publishers Inc.
Many airports and flights have limited free wi-fi access. They will give you half an hour or so of free time and then will either boot you off or demand money to continue. The way to get around this is simply change your MAC address when the timer expires.
Regardless of whether you are on a PC, Mac, or Linux laptop, a MAC address is how you are identified. But changing or "spoofing" your MAC address allows you multiple identities (and stops others from monitoring you). You can learn how to change your MAC address here.