[dennisw]

2¢ plain is plain old seltzer without any syrup. That's what I think it is. The man who wrote the book by that name was Harry Golden, a real rascal and the publisher of the Carolina Israelite.

[Lion in Winter]

That is EXACTLY what it is. Plain seltzer water. We drink it at our house all the time. We get it in liter bottles from Publix super market. They favor some of the varities with lemon/lime or rasberry. But there is no sugar, just a hint of flavor. We have buy drinking water anyway... we live in FLORIDA, after all. So why not get a little fizz with it!!

Sorry never heard of the author or his publication, though.