Ha! My wife and I tried this on our Winter 2015 trip, and failed miserably. I think we have an unusually high tolerance...Chris Hall wrote: ↑Wed Apr 19, 2017 9:36 pmYou can overdose on gardens, temples and shrines in Kyoto in a mere 5~6 days...
More seriously, congrats Derek. That's a good length of trip; it'll be a blast. One suggestion is to consider getting "IC" card(s) for each traveller in your group. These are the stored value "tap" cards used throughout Japan for the transit systems. They come with specific local brandings such as "Pasmo", but all of them work wherever IC cards are accepted, including at some vending machines. Many transit stations will have kiosks that can dispense new cards, and virtually all of them can top up cards. At least within Tokyo, Kyoto, and Osaka, the kiosks tend to have an "English" button as well, which greatly aided our poor written Japanese skills. Japan Post locations are reliable sources for ATMs that US travellers can use to get local cash, in turn useful for topping up and for Japan's much more cash-based economy.
The utility of these cards depends on what setup you get for the JR rail passes, but they were invaluable on our trip. They completely eliminate the hassle of figuring out correct fares and ticketing prior to making a trip -- just tap in at the start of your trip and tap out at the end. The exiting gate will show your remaining balance.
Closely related, one of the best decisions on our trip was to get data SIM cards for our smartphones immediately upon arrival. This gives you access to both Internet travel resources while you're there, as well as Google Maps. Our experience of Maps support in Japan was excellent, especially around transit/train routing in the cities. I'd recommend any of the NTT Docomo based resellers (for Docomo's great coverage quality), choosing one that has a plan well-suited to your length of stay. The airports will have a ton of vendors; the hardest part was sorting through them after having gotten off an international fight. Also not to be discounted, the Google Translate app, was also amazingly useful and I gather has continued to improve since our last trip.
Last but not least, I'll share a huge brainwave my wife had during our trip. Particularly in Kyoto, we discovered that it would take forever to walk to our "major attraction" for the day because there was so much to see on the way. To reduce the "shiny object" (or maybe "omg architecture") effect, her idea was simple: hire a cab first thing in the morning to take us to our outlying location, then meander at our leisure through the city back towards our hotel.