When it all hits the fan, many folks may be more focused on staying warm, fed, and alive than on not getting lost. When our alien overlords arrive, it'll be important not only to survive, but also to make it to humanity's rendezvous point to join the resistance and take back our planet. Enter the BioLite campstove, which utilizes a thermoelectric module to convert heat generated by burning twigs, leaves, or zombie flesh into electricity to charge your GPS while making coffee and staying warm. Nothing like a caffeine boost to make it to the rally point and save your species.