Originally Posted by xkmkmlmx
To back up Jesselt's advice, absolutely DO NOT take Taxi's.
Again, the train system might be quite daunting at first, but stick with it and you will be a pro at it within a day.
Taxi's are unbelievably high priced and will drain your funds in an instant.
Yes and no. Depending on how many people are traveling. If you have 5 adults, and a short distance to travel (let say, between 2-4 stops on yamanote or chuo line), it may make more sense to take a taxi. At least, for me splitting the bill between 5 passenger from Tokyo Dome to Akiba was cheaper than taking the metro and train......