Today over at Advance Auto Parts, you can take 15% off nearly everything on their site, plus get a $25 coupon (good on future purchases over $50) when you spend $50 or more. Just enter code H43 at checkout. [Advance Auto Parts]
If you don't own a fireproof safe, this one has 4.5 stars, and is only $17 right now. That's a small price to pay to protect your important documents in the event of an emergency. [SentrySafe 1200BLK Fire Chest, $17]
Update: Sold out
It's no secret that Anker makes some of the best external chargers around, and two of their larger capacity models are marked down to great prices today.
Anker Astro E4 13000mAh Dual USB Portable Charger ($30) | Amazon
Alternatively, you could trade a little bit of capacity for an LCD display and Wirecutter stamp of approval with the Intocircuit Power Castle. [Intocircuit Power Castle 11200mAh Charger, $30 with code YBURK9FK]