Can I use cards or cash at Tsukiji Outer Market in Tokyo?
Cash is still the norm at Tokyo's Tsukiji Outer Market; some sushi restaurants and shops accept cards, Suica/Pasmo or PayPay. Bring small yen and use 7‑Eleven A

Short answer: usually no — the nationwide JR Pass is not cost-effective for multiple short, Kanto-area day trips from Tokyo, but it can be worth buying if your 7/14/21-day activation window contains several long-distance shinkansen round-trips (for example Tokyo–Nagano, Tokyo–Kanazawa, Tokyo–Sendai). Check the official JR Pass coverage and compare the fixed pass price to the sum of individual fares for your exact itinerary before deciding [1][4].
The JR Pass gives unlimited rides on most JR services — local, rapid, limited express and most shinkansen — for 7, 14 or 21 consecutive days, but it does not cover the fastest Nozomi and Mizuho shinkansen services; you can use Hikari, Kodama, Sakura and other covered services instead [1]. The pass is a single fixed-price product sold for foreign visitors; current purchase and activation rules are on the official site [1]. For route and timetable specifics inside the JR East area (which covers Tokyo and much of Tohoku/Hokuriku access from Tokyo), see JR East guidance [2].
Do not rely on memory: check the official JR Pass page for up-to-date 7/14/21-day prices and the JR East site for regional pass pricing [1][2]. The basic math is simple: total the standard single-ticket fares (and any planned express seat reservations) for every train trip you will make during the pass window, then compare that sum to the fixed JR Pass price. If the sum of individual fares is higher, the pass pays off; if not, buy tickets or regional passes instead [1][4].
Many of Tokyo’s popular day trips are either short JR rides or use non-JR private lines and local passes, so the nationwide pass rarely saves money for these:
These examples show why short Kanto trips are usually cheaper per-trip than the fixed cost of the nationwide pass [3][6]. 
If your Tokyo base includes several long-distance shinkansen trips within the activation period, the nationwide JR Pass can be worthwhile. Typical single-day or multi-day long-round-trips that push toward break-even include Tokyo–Nagano (via Hokuriku/Joetsu/Hokuriku Shinkansen connections), Tokyo–Kanazawa (Hokuriku Shinkansen), and Tokyo–Sendai (Tohoku Shinkansen). These single-ticket shinkansen fares are comparatively high, so two or three long shinkansen round trips in a 7-day window can justify the pass [2][4].
Rather than the nationwide JR Pass, consider these Tokyo-focused options:
Bottom line: for Tokyo-centered travel concentrated on Kanto day trips, buy single tickets or regional passes (Odakyu, JR Tokyo-area passes) in most cases. If your planned days include multiple long shinkansen round-trips out of Tokyo within the pass window, then the nationwide JR Pass may be the right buy — but verify with current fares and regional pass options before purchasing [1][2][3][4][5][6].
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Cash is still the norm at Tokyo's Tsukiji Outer Market; some sushi restaurants and shops accept cards, Suica/Pasmo or PayPay. Bring small yen and use 7‑Eleven A
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