DIY herb preservation My (garden) pot is overflowing with oregano. How can I preserve it to use later?

Is it possible to preserve rosemary not in fat - butter or oil? If I have to use oil, what kind has the least inherent flavor but will take on the rosemary flavor strongly?
I've successfully dried both rosemary and oregano in a dehydrater, and I see no reason why you couldn't do the same in a warm dry place. Drying is a prerequisite for making herb oils anyway.

The flavour of rosemary in particular changes on drying, so it's not as good for some recipes as fresh