You're accident prone and out in the wilderness without a first aid kit. Bad idea, but thankfully you can make a band-aid out of birch tree fungus in a pinch.
This trick feels appropriate coming from an Instructables user named "fallscrape". He shares that Birch polypore, also known as Piptoporus betulinus, makes a for a good emergency band-aid.
Check out the link for details on how to properly identify the fungus needed and pointers on avoiding additional injuries while making the band-aid. Then let's hear your own first-aid tricks for dealing with everyday ouchies and boo-boos.