Originally Posted by full of luv

Are you military connected? If so, I'd start with the New Sanno downtown Tokyo if you can get a reservation.

Otherwise, just find a spot you budget can afford near the subway in Tokyo. If your timing is right I'd:
1. Go to a sumo match if one is in session and you can get tickets.
2. Go to a Tokyo Giants baseball game in the Tokyo dome (much different than any ballgame you've ever been to).
3. Don't let a good jet lag go to waste and visit the Toyosu Fish market (replaced Tuskiji) (must go bright and early as it's over by 9am) and see tuna auction and every form of life in the sea that is apparently edible.
4. Go to Hakone for a great time and beauty Japan style, hot springs, big lake.
5. Climb Mt Fuji, a challenge, but doable and fun with family/friends. They have stops along the way to enjoy the trip!

Easy to take bus service (called limo) from NRT to downtown hotels.
Have Fun!