Is it hard to get to other parts of town from Shibuya? I did a preliminary plan of our daily itinerary and it seems that it would break down as follows. I arranged it by grouping locations close to each other.

Day 1
-Tsukiji Fish Market
-backstreets of Tsukiji
-Imperial Palace Plaza
-East Garden
-Ginza
-Roppongi district

Day 2
-Asakusa Kannon Temple
-Nakamise Shopping
-Akihabara district
-Edo Tokyo Museum
-Shinjuku
-Kabuki-cho

Day 3
-Harajuku district
-Meiji Shrine
-Oriental Bazaar
-Shibuya Crossing
-Shibuya Station – Myth of Tomorrow

Day 4
-other things missed from other days
-flight from NRT leaves at 545 pm