You can talk about guns, knives, GPS's, first aid kits, water purification, bug-out bags, EDC, et al, ad nauseum, ad infinitum.
Your primary Survival tool is yourself, and probably the one thing that so many don't even think about is your own damned health.
Point: This morning I got up for work and felt a slight twinge in my back. Considering the damage I've done over the years, it was nothing particularly noticeable. I took my shower, got dressed and walked up to the bus stop. I got on the express bus and within 5 minutes the twinge in my back turned into a full blown pain like nothing I had ever experienced in my life.
With the traffic this morning I was stuck on that frigging bus for 1-1/4 hrs. By the time I got to work, I thought i was going to die. I tried taking it easy but it wasn't getting better, so for the first time in my life, I asked my supervisor to call 911.
A short while later the ambulance came, and luckily there is good hospital; just 3 blocks from where I work. By the time I got there, the pain had actually started to subside.
To make a long story short, a quick examination, combined with my description of what I was later told were textbook symptoms, and the results of a urine test showed that I have a kidney stone.
They discharged me after about an hour (and for the record, I managed to avoid having to put on one of those em-bare-assing hospital gowns) they discharged me after giving me painkiller and an anti-inflammatory.
Tomorrow I have to see my regular doctor, and I'm told that for the next 7-10 days I am going to be drinking a shitload of water and waiting to piss this thing out.
I'm thrilled i tell you, just thrilled.
The point of this rambling post you ask?
Simple, take care of your health, or IT will take care of YOU!
This has been a public service announcement.