Tokyo is a really vibrant and colourful city with a lot of things to do and places to explore. There are also various food items that you can try. I went to Tokyo in the month of June and I stayed there for only 3 days but I covered most of the highlights which are there to be seen.
Tip: The cabs in Tokyo are very expensive and the underground metro is well built and it is accessible to all places in the city. The cab is almost 4-5 times more expensive than the metro. The metro also takes less time to travel by so if you are in the city for limited time, you should take the metro.