Making your Medical B.o.B the Dollar Tree Way (part 1/Extended)

This is my 3rd trip to Dollar General in 2 weeks, and again, picked up some wonderful things. All $1 of course. But I decided, since it was necessary anyway, to go into length about 3 particular items and how they're used in a survival situation. Bandanas, Epsom salt, and Large trash bags. I'm no expert on survival and preparedness, but I have learned some things over the years, and can ALWAYS use positive feedback and information to make me more thorough. These things of course, aren't an end-all be-all to survival, but I can only discuss what I know. For those that have been doing it longer, help me out. All POSITIVE feedback welcome. Anything else shall be deleted. Thank you ALL for your patience and support. Peace and ancestral blessings.