My bug out bag is just my usually long haul backpacking/hiking pack that I keep fully stocked in the basement. I could live out doors for a minimum of 2 weeks without having to find any outside food, and water filtration that would suite my needs for a long time. My super lightweight backpacking tent/sleeping bag/etc would provide shelter down to -20F. Strap my 12 gauge and some ammo along with a appendix carry and spare ammo, and I am good to go.