Do I need a plug adapter for Japan?
Japan uses flat 2-pin (Type A) plugs at 100V. If your devices have round pins you'll need a Type A adapter; most modern phone and laptop chargers already support 100–240V, so just check the label.
How much cash should I bring to Japan?
Big cities increasingly take cards and QR, but small shops, temples, vending machines and many buses are still cash-only. Bring a reasonable amount of yen plus a card that works abroad as backup.
How should I pack for winter in Japan?
Layer up — a heat-tech base layer, a warm top and a windproof coat, plus gloves, a beanie, a scarf and stick-on heat pads (kairo). The air is very dry, so pack lip balm and moisturiser.
Can I save this checklist?
Yes — it remembers the items you tick on this device (they're still here when you come back), and you can print or save it as PDF or copy it as text into your own notes.
How much should I pack for a Japan trip?
3–4 days packs light enough for carry-on; 5–7 days suits a medium checked bag; for 8+ days bring laundry sheets so you don't haul as many clothes, and leave space for souvenirs.