Official: https://www.city-cost.com/ How to ... in Japan: maybe most expats have little idea about the number of day passes you can get for the Tokyo metro. To be fair, those that live in Tokyo probably don't need 'em. If you're visiting though, they could be a good deal. And if you change your mind, you can always get your money back, as we show you here. Don't forget to let us know in the comments, what you'd like to know how to do in Japan, and we'll try our best to get it done!