A "Water Bob"- I'm gonna buy one of these

This is like a huge plastic bag filled with water, and you fill it while it is inside your bathtub.

It holds 100 gallons of water!

http://survivalcache.com/emergency-water-storage/

I can't wait to buy one of these.  Then, when we have a hurricane coming, I will fill it up, just as a way to augment my existing water storage.