India → Japan 11-day trip prep: cash, forex card, SIM, Suica & useful tips?

Hi everyone,

Traveling from India to Japan for 11 days soon (2 people) — Tokyo/Kyoto/Osaka itinerary.

Flights, hotels and Shinkansen bookings are already done, so now focusing mostly on practical/on-ground prep.

Would appreciate recent practical advice on:

How much physical cash to carry vs forex card vs credit card?

Best SIM/eSIM option currently for tourists? (good coverage + easy setup)

Best way to handle Suica/PASMO in 2026 for Android users? (No Apple Wallet/iPhone)

Is luggage forwarding between Tokyo and Kyoto worth using? Any recommended services/process tips?

Any useful Japan travel tips first-timers often miss?

Things you wish you knew before your trip?

Would especially appreciate recent experiences from travelers in 2025/2026.

Thanks!

by yj1290