http://www.japantoday.com/category/national/view/yoyogi-park-reopens-after-57-day-closure-due-to-dengue-fever

here is a link to some helpful information for getting in and out of the airport

http://www.nippon.com/en/features/h10003/

looks like you can buy more now on next year's trip to Japan

http://en.rocketnews24.com/2014/10/01/new-tax-exemption-system-for-foreign-visitors-starts-today/