Make the "Katrina Granny", an improvised boat by painting a mattress. This boat is perfect to get from your house to high ground when the flood hits. This truly is the fastest boat in the world. To build that is. You can even use it for a mattress while waiting for the disaster to hit!
Next time you're driving to the beach and you see a mattress and some paint cans dumped by the side of the road, you know what to do!