I debated about even posting this and sounding like a fool, but here goes:
With all the possibility of flooding to the point of evacuating why is it you don't see bathtubs being pulled out of homes to use as a sort of life raft. I'm talking about one person or a child or two and maybe a little something in the way of supplies, not as a lifeboat for 20.

I searched the net and ETS and only found 1 very vague reference on the net having to do with a marine accident where the survivors used a bathtub because the ship had no liferafts. No info as to if they were in it or just swimming along clinging to it. Tubs are the obvious water storage but if the tub is underwater, or about to be, why not pull it out, plug the hole(s), and climb in? It seems like something that could be done with just a few tools and a little time.

Maybe people do it all the time and I just couldn't find it? I'm not suggesting anyone stick around in a flood when they should evac but if you find yourself needing to escape "on foot" in deep water would this be a possible alternative?