Is it worth buying a JR Pass?

If you are staying only in Tokyo, no. A JR Pass is only cost-effective if you are taking multiple long-distance Shinkansen bullet train trips between cities like Kyoto or Osaka.

Can I use credit cards everywhere?

Not yet. Keep at least 5,000 yen ($35) in cash on you at all times for vending machines, small shrines, and local restaurants that only take cash.

How to visit Tokyo on a budget

Tokyo can be expensive, but you can keep costs down by eating at convenience stores or chain restaurants, using the subway instead of taxis, and prioritizing free observation decks over paid attractions. Budget $75 per day to cover food, transport, and entry fees while staying in a hostel or business hotel.

Master the transport. Buy a Welcome Suica or Pasmo IC card at the airport. It saves you the hassle of buying individual tickets. Avoid taxis entirely; a 15-minute ride can cost $30, while the subway will cost $2.
Eat like a local. Avoid 'sit-down' dining for every meal. Hit up Yoshinoya, Matsuya, or Sukiya for $5 beef bowls. For lunch, buy 'bento' boxes at supermarkets like Life or Daiei after 7:00 PM when they are discounted by 30-50%.
Choose free attractions. Skip the Tokyo Skytree ($20+). Instead, go to the Tokyo Metropolitan Government Building in Shinjuku for a free panoramic view of the city. Many shrines like Meiji-jingu are also free.
Use convenience stores (Konbini). Lawson, 7-Eleven, and FamilyMart are high-quality. A 'famichiki' (fried chicken) or a rice ball (onigiri) costs about $1.50 and is a perfect quick snack.

Is it worth buying a JR Pass?: If you are staying only in Tokyo, no. A JR Pass is only cost-effective if you are taking multiple long-distance Shinkansen bullet train trips between cities like Kyoto or Osaka.
Can I use credit cards everywhere?: Not yet. Keep at least 5,000 yen ($35) in cash on you at all times for vending machines, small shrines, and local restaurants that only take cash.