The ever-interesting and enterprising Dave Canterbury of Wilderness Outfitters has a neat on-going series on the therapeutic* uses of various wild plants found in the eastern hardwood forests of the United States.
Who knows when you might need put something like that into practice?
He also has loads of short videos on very useful woodsman knowledge. Things that men should know. (Pokemon Go players need not apply.)
* I say “therapeutic” because I do not know what the medical profession says. All standard disclaimers apply. Figure it out for yourself!