Water is okay, but with the exception of food, we are prepared to pick up and leave at a moment's notice. I possess a small tent trailer which is stowed with gear year round (I winter camp too). I have spontaneously made decisions to go on an adventure and been on my way near immediately. We have what we need to make a pretty rugged go of it if necessary. I also never allow my car to be more than half empty - ever.

I think this is something everyone needs to consider - especially if living in areas that might befallen by disaster - forested areas, flood plains, etc. I am really glad you brought this topic up. I am sorry you lost what you did.