For me, it's been a great development. Having spent a lot of time working in restaurants in my teens and early 20s, I'd sampled an awful lot of the kinds of soda on the market 20 to 30 years ago, and pretty much got my fill of it. Toward the end of my food-working career, I'd switched to seltzer water, which had plenty of fizz but no after taste and no calories. It's been my soft drink of choice ever since, though it hasn't always been as easy to find as it is now. A stroll down the soda aisle at the grocery store reveals an entire section devoted to seltzer and quinine water. These days, not only are there competing brands of seltzer, but also there are a range of flavors. There is, of course, seltzer classic, just bubbly water. Then there are the flavors lemon-lime, orange and, strangely, raspberry.