Hate travel. Love airports. They're great places to observe humans.
I, for one, am in geek heaven right now. Terminal where I sit has free wireless, so I get to sit here, do my email, chat with friends, listen to my fave interweb radio station, and post to the blog. Sweet.
I have camped out near a power outlet. There are six outlets available, only two have juice though. Over the past hour, I have seen a number of people come and plug in their laptops into dead outlets only to discover (sometimes much later) that their batteries are not being charged.
This is interesting because one would think that laptop computers provide enough feedback as to their power supply: a glowing symbol on the body of the computer and a symbol in the system tray/panel. However, this must not be obvious enough.