Salt

So.... we're running low on salt in the house. I don't normally use salt-- it's either soy sauce or vegetable bouillon, or I omit salt altogether. But occasionally that's not an option. Like, sweet potato fries. Anyways, this really causes a problem because, to my knowledge, there's no such thing as organic salt, since it's mined. And although there is "local" salt from the Maine Sea Salt Company, this stuff sells for $6/8oz bag, which is a whole lot more than Morton's. So I'm curious-- assuming they don't live on the coast, do locavores have to omit salt?