I know that PamelaF already mentioned it, but the Gilroy Garlic Festival is worth mentioning again. Around harvest time, the entire town of Gilroy is shrouded in pungent garlic smells. Just driving along highway 101 around festival time conjures up all sorts of fond garlic memories. Around California, and probably elsewhere as well, Gilroy is known for the Garlic Festival once a year and a stripmall with several "factory outlets" the rest of the year. Once, when the town was steeped in garlic, I purchased a shirt at one of the outlets... Weeks later the shirt still smelled like garlic.