Papier d'Arménie
Papier d'Arménie is a French brand of incense-scented strips of paper, based on a traditional Armenian (as the name suggests) benzoin incense. It is used for purification, both of the air in the ordinary sense, but also of the atmosphere in a more rarefied sense. And it is commonly used for the latter purpose among French Tarot readers.
On another, slightly more practical level, it's also very useful to insert a few strips into a musty-smelling book, or at the bottom of a box of tarot cards; keeps them smelling nice and fresh.
Papier d'Arménie also make lovely scented candles which are perhaps not as harsh as the paper strips. They have an English website and are also available through the usual online retailers.