I raised up the full size bed in my guest bedroom a few inches, and I'm able to store 18 (I think) cases of water (24 16 oz. bottles, or 12 quarts, or 3 gallons per case). They are out of the way, in the dark at a controlled temp. We drink bottled water daily, bought during regular weekly or so shopping trips, but the water under the bed stays where it is. Ever May or June (when it gets hotter than blue blazes) all the under the bed water comes out and gets stacked in the kitchen for drinking, and its a trip back to Wally world to replace it all the same day. We get some weird looks with 2 shopping carts completely filled with nothing but water, but not weird enough to make it on the web site- so far. We will go thru all 18 cases in about 6-8 weeks. The water has never tasted bad or anything. By doing this, it insures that it never stays around more than a year or so, and in the hottest months we have at LEAST 18 cases, or maybe as much as 36 on hand, depending what day it is. The only drawback is that for a month or 2 there's cases of water all over the kitchen and in the hallway, etc. I prefer this method VS drums because I don't have to worry about the cleanliness of drums, etc., and its alot easier to fill up a nalgene, canteen, camelback, etc. from a 1 pint bottle than a drum, as well as being able to move water from place to place in any amount I want, and the ability to get an accurate count of what is on hand.. In addition, we have 2 katadin backpacking pump filters to purify water anywhere as an alternate, several bottles of mil purification tablets as a contingency, and a gallon of bleach with an eyedropper as an emergency (along with a whole bunch of propel packets)