When you travel around the Tokyo, maybe you waste your money especially for transportation. At this time I introduce free bus around the Tokyo station everyone can take.
Hinomaru Limousine take a good service of free bus around Tokyo station. This service can get the sponsorship money from several companies around Tokyo. This bus is for travelers or workers around there.
First of all, I introduce this standard course which is routing around the Marunouchi area. Before you are going to Tokyo, you should download to your smartphone.
<Marunouchi Shuttle>
You can get the information where the bus is by the application. You can search by “Tokyo free bus”. Please install before your travel. Good luck!