Originally Posted by freecia

So if an itinerary looked like this then I'd just go with a 7 day pass.
Day 1-4 Tokyo
Day 4 Tokyo to Kyoto
Day 5-9 Kyoto, Osaka, Nara
Day 9 Kyoto to Himeiji to Hiroshima
Day 10 Hiroshima to Tokyo
Day 11 Hakone to Tokyo

If I were chasing cherry blossoms or fall leaves and it seemed like I might need to head to Sendai or Nagoya on days I thought I'd be staying put, then I'd probably get a 14 day pass, pickup a regional pass, or pay out of pocket.