For the “month” kit, consider tote containers or surplus duffle bags staged at your safe, pantry, and closet with checklists on what to throw in and toss in the car. My get gone bag is half overnight bag and half survival pack. I have more food in it than most recommend after reading about people getting their vehicle stuck in bad weather. Also a second smaller shoulder bag with an old pair of hunting boots, socks, gaiters, and a wool sweater.

Lotsa good stuff in the thread so far.
I'm (slowly) working my way through the katrina blog.
Some interesting stuff in there - including good mindset/philosophy points.