Update 11/20/13 11:23pm PT: New code LX8KY93A (via FatWallet) should work today for the same $4 off.
Another device, another charger. That's the way the story goes. I personally leave a USB charger hanging from at least one outlet near every resting place in my apartment, but if you happen to need all of your devices in roughly the same place, my system won't exactly meet your needs.
You don't need to have one of those super hefty extended battery phones to burn through juice with wanton disregard for the future. All you need is a big honking external battery, and we found just the thing on sale today. The Anker Astro E4 is a 13,000mAh rechargeable cell that is usually only $44. That's a good deal, but for the next few days, it's down to $36.99.
The Anker Astro E4 weighs under 11oz and can charge most smartphones 5-6 times without needing to juice up itself.