Survival kit...
1 hammer,
1 thumb-sprung 4" pocket knife
1 combo bow, 1 recurve bow, a dozen arrows
10# whole rice,
10# dry beans and legumes
10# dry pasta
lots of canned tomatoes and peppers.
I figure... Invasion, I get to let my "good side" shine; it'll be GTA, I'll start with a hammer and 5 star that bitch before I've cleared my parking lot. Local marshal law, same thing, except less flamboyant killing spree, medical pandemic. I'm good, thanks. Fresh air supply very easy to make from compressor, and existing water purification system. Large house, with set-back access, the previously mentioned compressor filtration system, and new windows/seals. Easy to seal off and only pump "purified" air in. While not "doomsdayers" my family does have a "national meltdown" gathering plan, and it's been modified to include the boss lady's family. I'm going straight Warlord if shit hits the fan.