Another convenient supplement to permanently stored water that seems suitable for Floridians, since you'll have some warning about approaching bad weather, is one of these flexible bladders that you can use to quickly turn your bathtub into an extra 45 gallons of stored water just before a storm arrives. There are a number of products out there. I've never tried any of these bladders but this is just one example that an ETS member brought to our attention a while ago.