Mid-range travel in Japan runs roughly ¥15,000–25,000 per person per day, with Tokyo accommodation adding a modest 15–20% premium over that figure. Backpacking works at ¥7,000–11,000; comfortable travel with good hotels or ryokan and first-class rail runs ¥30,000–55,000.
Carry cash. Japan remains more cash-reliant than its technological reputation suggests — card and contactless coverage has expanded considerably, but smaller restaurants and shops, especially outside major cities, are still often cash-only.
Convenience stores are a genuine budget ally, not just a last resort — onigiri, sandwiches and hot food from 7-Eleven, Lawson or FamilyMart hold up as legitimately good, cheap meals at any hour.
Book ahead, without exception: a JR Pass if your route suits one, popular restaurants and teamLab-style attractions in Tokyo, and any accommodation during cherry blossom season, Golden Week or Obon.
Small savings that add up: standing ramen counters and conveyor-belt sushi over tourist-district restaurants, convenience store breakfasts over hotel ones, and an IC card to avoid single-ticket fare calculations on every local trip.