A friend once reminded me, “always take a knife to a gunfight.” Sounds counter intuitive but hear me out.
Seriously though, a good knife is a real weapon even when the blade starts to dull. Find a smooth rock, invest a few minutes and you can sharpen that blade up real nicely.
What is your escape route plan? An escape route or plan is not just one way out. You have many places you need to get away from
Is storing stuff in a buried container a good idea? Yes, provided you get a decent container and you put the right stuff in it. Decently sized storage containers that can be buried range from less than $50 to $200 or more. As with most items, the warning “you get what you pay for” applies here.