PokillionaireCarry your passport everywhere in Japan. Shops like C-Labo and Hareruya 2 offer 9% Tax Free to foreign visitors.
On a $500 card haul, that's $45 back in your pocket instantly.
C-Labo has branches across Tokyo, Osaka, Nagoya, Kyoto, and Shizuoka. Hareruya 2 in Akihabara is 5/5 Diamond; excellent selection, all Tax Free.