Hand Chargers, spare batteries, keeping your phone turned off/asleep with all the apps turned off? Lots of ways to keep cellphones viable, as long as the towers don't get broken by six-wheelers plowing into them, right? :x<br/><br/>But yeah, I like the idea that water and electricity are still running, even if only temporary. My friend's grand plan for surviving in a city with zombies was organizing survivors to try and defend/keep running the power plant and water treatment plant. A great idea, if you have survivors that actually know how to do that, or there are instruction manuals XD<br/><br/>And yeah, I wouldn't want to turn on the power in a mall. Big bright lights and that background music that automatically turns on? Probably a bad idea!