In autumn Trader Joe’s carries these cinnamon brooms, actually made of pine that has been treated with cinnamon oil (from the cinnamon tree, how cool that cinnamon is bark). They smell purely, authentically and, at least at first, powerfully, of cinnamon. I love the smell of cinnamons (there are so many varieties!) along with all of their known associates (nutmeg(s!), allspice, clove, cassia), anything under the compelling umbrella of spicy and warm,* and usually pick up a few. They provide a pleasant, natural fragrance for a good while.
*Remember the original Bulgari Omnia?
My favorite application is sticking one in the coat closet so I smell like chai all winter.