Water containers would be a good thing. IMO it doesn't make sense those big runs on bottled water- you can buy a lot of jugs and containers for what it costs to buy it bottled, and then reuse them. Probably batteries is another good item to have. I've never been through a hurricane but been through plenty of blizzards and there's some overlap in issues (eg can't out to the stores, power may be interrupted, etc). Good chance that in the aftermath the water may be contaminated so storing some is a good idea. You might look at the WaterBOB which allows you to store 100 gallons in your bath tub and keep it clean.
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman