Hmmm.  
Okay.  I always have my survival tin.  I carry it the way normal people carry a wallet, so I'm gonna include it without making it one of the ten items.  I also carry a mini-LED in my right-hand pocket.
With that in mind, here's my list:
1. Handgun 
2. 32oz water in Nalgene bottle
3. MRE
4. Veritas collapsible buck saw
5. Multitool - full size
6. Rain suit
7. Big knife.  (mine's a K Bar, 7")
8. Spool of para cord
9. Tommy stove
10. Work gloves 
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Knowing where you're going is NOT the same as knowing how to get there.