Get a Suica or a Pasmo card
Japan’s public transport is incredible, but it can be a little confusing at first to work out which tickets you need to for each journey, especially on the subway as there are two metro operators as well as Japan Rail who each require you to buy different tickets. So instead of the time consuming hassle of figuring out what you need to buy to go where, simply buy a Suica or Pasmo card, top up and you can use it on all lines. You can buy them at the airport when you arrive, at the major JR stations or from vending machines (for the Suica, you pay ¥2,000, which includes a ¥500 deposit, and you can then top up as much as you want - but make sure when you return the card that you’ve used all of the remaining credit, otherwise you’ll be charged a ¥210 handling fee). And in typical Japanese fashion, you can even use them at convenience stores, vending machines and to pay for taxis. If you’re travelling further afield than Tokyo, both Such and Pasmo are a great choice as you can also use it throughout Japan’s other major cities like Osaka, Kyoto, Nagoya, Fukuoka.