Thank you very much for the advice jib71. I have some questions, and maybe I should post them in the United forum, but... Can I check my bags immediately when I land (so I all I have to carry into Tokyo are my carry ons)? Is it possible to check part of my baggage, and not all of it? Alternatively, is there a place to store my baggage at Narita so that I can only take with me what I need?

Thank you.

Also, can anyone recommend either a guided tour or a suggested itinerary? I arrive at 2 PM and leave around 4 PM the following day. I will have luggage (depending on the answer to above). I do not need to sleep, but it might be nice to atleast shower. I will happily go all night if I have places to see and am safe.