Napa Valley can be an intimidating place. If the idea of wine with its white tablecloths and sommeliers weren’t intimidating enough, there’s all of that terminology that you need to understand. There are “appellations” (not to be confused with the Appalachians) and “terroir” (which isn’t to be confused with terror unless you’re a southerner who doesn’t speak French very well.) I’ve barely managed to adapt to the new directional perspective required when the coasts changed sides from left to …