Mineral water can be so useful. That is , so long as it is sparkling.
Still waters may run deep but they leave me cold.
As a green tea blend
Every day I drink green tea (made on cold water) 'alf n'alf with mineral water. I love it. It's a tipple that's displaced a lot of my (hot)white tea consumption.
As a spitzer for red wine.As a base for lassi
I drink cask red wine. I half full a jug with water and freeze it. I then pour in one part red wine to one part mineral water. The water melt sand the mineral water dilutes the alcoholic hit without any perceptible loss of taste.
Instead of adding water to yogurt to make lassi -- I use mineral water. One part mineral water to two parts yogurt. Traditionally lassi is a salted drink and the salts in the mineral water suit the convergence of tastes.