We are very excited about a two week trip to Japan in June. I've only ever been to Tokyo for business and it will be the first time for my spouse and our Japan-interested 16 year old daughter. We've got flights organized- IAD-NRT nonstop - ANA out and United home. We've also got three nights at the beginning and three nights at the end in Tokyo, staying at the Tokyo American Club. So, there's a week in the middle up for grabs. I am planning to get Japan Rail passes for that week, but we haven't really sketched out much of a plan, yet. How much can we play it by ear and fill in the blanks as we go that week? Are there any things we absolutely must plan and reserve in advance? We have a huge list of places we'd like to visit - way to many for the one week we will have, so we are a bit paralyzed in planning, and thought maybe making it up as we go along would be more fun. Smart or crazy? Some of our best travel experiences have been happenstance, but that goes out the window if it's stressful.