Originally Posted by
beep88
Also you can post-date the luggage delivery up to 7 days - send the bag today and pick it up at the airport/hotel 7 days later, for example. More flexibility there.
In this case, I would send large luggage to Narita using Takkyubin from the hotel in Tokyo (Cerulean) and use a small carry-on for the last 4 days.
This is 100% reliable and you can also track the progress online.