I've been searching all over, to no avail, for this specific gem:
R.W. Knudsen Organic Mulling Spices. Delicious mulling spices in the convenient form of a tea bag. Just steep in hot apple cider/juice and you've got a cup of yummy autumn goodness. I first tried these last year but have since run out and can't seem to find them anywhere!
Until I can get my hands on a box, I've been seeking out other mulled cider recipes. Martha has a bunch here. I'm also eager to try out this Vin Chaud recipe from the wonderful Little Brown Pen.