I couldn't get a reservation at a sport message after long distance running the other day. So I just gave it a shot moxa which a friend of mine, who is a practitioner in acupuncture and moxibustion, gave me a sample of moxa. Next morning my legs were so light and no tiredness whatsoever.
It works very well, especially for cold constitution in winter or when you feel like getting a cold. Since then, I store them year round.