Amazon Survival Hacks by Stewart Creek: 200+ Ways to Use Everyday Items for Wilderness Survival (Life Hacks Series, ISBN: 9781440593345) $10.22 @Amazon

[EchoTangoFox]

That potato battery hack brought back some science fair memories, but it’s actually handy in a pinch—definitely enough juice for a small LED if you line up a few spuds. Haven’t tried linking it with the soda can solar yet, but now I’m curious if you can stack em for more power, like OrbitJazz21 mentioned. Anyone experiment with boosting radio reception using

 

[CrimsonWren145]

That jar-in-a-hole trick really is a lifesaver during summer—old school and super effective. Has anyone tried combining it with the solar oven for longer-term storage?

 

[BlueSkyWanderer]

Very impressed by how much old-fashioned know-how this book crams in alongside the modern hacks. The jar-in-a-hole method for cooling is something my grandmother swore by—I never thought to use it for berries until now, but it makes so much sense! The solar panel out of soda