Deus Ex Machina and I attended a workshop on "Natural Healing with Medicinal Teas." It was a great lot of information, and I was very impressed with the presenters.
I came away with some very exciting information, though - not because I now have the outline for "curing" just about whatever ails us using herbs (many of which I'm already growing, or have access to in my local area), but because I was given an ingredient that can be used as a substitute for the green tea I so love, but have been trying to wean myself from.
They grow prolifically - everywhere, and, unlike some mushrooms, are easy to identify. None of them are poisonous - although it would be tough to eat most of them (because they're so *tough* ;)).
So, we came home and made a blend of chaga, sage and lavendar. It's delicious, and while I'm using it today medicinally, because someone gave me a cold, it's a keeper and could be my every-day-substitute-for-green-tea.
The best part: it's 100% local - right down to the sweetner, which is honey ;).
Oh, and free, because I don't have to buy chaga. I can go and find it ;).