Most first-timers arrive with a list of sights and leave having spent half their time underground. Tokyo rewards a different approach: think in neighborhoods, not landmarks, and let the trains do less of the work.
The ring, not the center
Tokyo has no single downtown. The JR Yamanote line, a 35-kilometre loop, strings together a dozen city centers, each with its own character: Shinjuku for scale and nightlife, Shibuya for youth and noise, Ginza for polish, Ueno for museums and old-town flavor, Ikebukuro for anime and cheap eats. Inside the loop sit the Imperial Palace and a great many office blocks; most of what you want is on the ring itself or one or two stops outside it.
A full lap takes about an hour, and trains run every two to four minutes from roughly 4:30 in the morning to just after midnight. Learn the loop and you have learned the city’s skeleton. Everything else (the Chuo line west to Nakano and Koenji, the Ginza subway line east to Asakusa) hangs off it.
Pick a base on the side you care about
Choose a hotel within ten minutes’ walk of a Yamanote station, then pick the side. West (Shinjuku, Shibuya, Ikebukuro) if you are here for nightlife, shopping, music and fashion. East (Ueno, Akihabara, Tokyo Station) if your list is temples, museums, electronics and early mornings. Crossing from one side to the other costs 25 to 30 minutes each way, which is fine once a day and tiresome three times.
Business hotels at around ¥10,000–15,000 a night for a small double are the realistic middle ground. The rooms are compact but spotless, and the location matters far more than the square metres.
Two clusters a day, on foot
The single most useful planning rule: each day, combine two neighborhoods that touch, and walk between them. Harajuku and Shibuya are 20 minutes apart along Cat Street. Asakusa and Ueno are a 30-minute walk or three stops on the Ginza line. Ginza and Marunouchi share a boundary at Yurakucho. Shimokitazawa and Shibuya are joined by the Inokashira line in under ten minutes.
Walking is not just cheaper. It is where you find the shrine wedged between apartment blocks, the coffee counter with six seats, the vintage shop with no sign. Trains show you platforms; feet show you Tokyo.
Mornings early, evenings late
The city runs on a clear rhythm, and fighting it is the most common first-timer mistake. Temples and gardens are empty and at their best before nine: Senso-ji’s grounds are open around the clock, and Meiji Jingu opens at sunrise. Department stores and most shops open at ten or eleven. Restaurants fill from noon to one, empty, then fill again from seven. Izakaya, yokocho alleys and Golden Gai bars only come alive after eight.
So start early, do your temples and parks, eat lunch at 11:30 before the office crowd, shop in the afternoon, rest at the hotel for an hour, then go out again. You will see both the quiet Tokyo and the electric one, and you will skip most of the queues.
Money, cards and the small frictions
Get a Suica or Pasmo card (or add one to your phone wallet) on day one; it works on every train, bus and most convenience-store tills. Credit cards are now accepted almost everywhere in the center, but carry around ¥10,000 in cash for ramen ticket machines, small bars, shrine offerings and the occasional old shop. 7-Eleven ATMs take foreign cards and run all night.
Tipping does not exist. Shoes come off where the floor steps up. Eating while walking is frowned on, so finish your onigiri before you move. Rubbish bins are rare; carry a small bag. Talking on the phone in trains is a genuine faux pas, and queuing is taken seriously, from the platform markings to the ramen line.
What to skip the first time
Odaiba, Disneyland and a Mount Fuji day trip each cost you most of a day and give back less than a single neighborhood explored properly. Skip the themed cafés unless they are the reason you came. Three or four full days spread across six or eight neighborhoods, each walked slowly, will leave you knowing Tokyo in a way a checklist never will. The rest is a reason to come back.