So you buy the largest size of the cheapest "house brand" water you can find. Many grocery stores have bottled water dispensers, where you bring your own container. Those are really cheap. Or you get a filter for your sink's faucet, or even one in a pitcher. (I do the latter at work, 'cause from time to time the water here tastes like chlorinated dirt). You don't need the name brand stuff, nor do you need to buy it by the single bottle. Walgreens has 32 20 oz bottles (of Nestle brand) for around 3.50. That's way less than a buck a bottle.
It just an example of how the dollar has crashed in value. Pennies are going to be eliminated soon, or should be. You cannot buy anything for a penny anymore.
Families are getting back together, just to survive. Maybe it's a good thing.