^^^What we do in the hellishhorses household. Wife gets irritated that she can't use her kitchen closet because it's filled with Sam's water when it goes on sale. I stock up on their $2.48 32/ct — 10 cases of water for $25. We also have the hot tub for emergency uses, but a rainwater collection tank would be a much better option. With my pool equipment resources, I'm thinking I could do much better.if you drink bottled water regularly - i suppose you could have a base stock - and work thru a rotation of using the oldest stuff and replacing it so that you always have a certain amount on hand