I am the wife and we do have 3 days worth of food and meds. Even more ammo and I don't let the dog food run low. I do need to work on the drinking water.
2 liter soda bottles, washed out and filled work great for storing water, and can be stored in lots of places. Also handy to throw a couple in the freezer the day before going fishing.
Beer cold on the way out, fish cold on the way in. ;)
I keep them in the freezer if the freezer is low on food, to help keep stuff frozen. Full freezers are more efficient.
/johnny