The city of everything
From high end restaurants, to budget shops, the tall Sky Tree, to the historic Sensouji in Asakusa, Tokyo is the centre of everything in Japan, be it economic and cultural. Having been to other Japanese cities, no other city matches the scale and vastness of it.
Insider Tip:If shopping on a budget for daily necessities, supermarkets and Don Quijote ("Donki") can offer better value for money than convenience stores or 100 yen shops.
Use Hyperdia to find the best route to get around Tokyo's vast and complicated train network that station maps may not tell you. You can use an IC card to pay slightly less than in cash. You can use it to purchase a ticket instead if you want to keep the card, but want as little balance when you leave. You can pay the balance in cash.