The wife usually has a bottle of water nearby, but it's one she refills. She hates the cheap flimsy bottles, she keeps the nice ones.
We have a filter on the fridge, but when it goes red, I just reset it without buying a filter.
Coke and Pepsi had to treat their water before making their sodas, so this is like manna from heaven for them.
The use RO and then add back a bit of salts. Pure water tastes horrible.