I actually printed out signs which read: "If you come through this door [window] you will be killed" in English and Spanish. Not sure I want to advertise, but better to have them already printed out before you lose power.
I've pre-selected certain trees to come down if it came to that to deny access for vehicles. And I have an interesting book about traps of the Viet Cong....
Bugout/bug-in = always have an alternative plan. We've got swamps across the street where nobody wants to go. I've been playing in the mud since I was a kid.