These ic Cards are really convenient for transportation and grocery shopping , etc. The best known are the SUICA cards of Tokyo and ICOCA of Osaka. I myself have a TOICA from Nagoya. But whenever I use it in other places like Sapporo, Tokyo, Osaka , or Hiroshima, the local clerks have never seen one and they refuse me at first. But after consulting with the manager, I finally am allowed to use it.😊
