Visiting three museums in a row would be very intensive in the Netherlands, but the exhibitions I saw in Tokyo were small(er) and different from each other. The first one I went to was the Tokyo Edo museum. Edo is the former name of Tokyo until 1868 and it was full of historical objects, illustrations, prints and a life-sized street from the 18th century. Especially the booklets about mythical stories were interesting for me. People believed that there is a giant catfish under the ground that cause earthquakes in Japan. While looking back to my memories I think this was a great inspiration with those imaginary stories.
Just about 15 minutes walking there was the Hokusai museum, which was not as good as I have expected. There were only 10 works hanging in a very dark (almost black) room, and it was impossible to draw in the place, but I liked the woodcuts anyway.
The last museum I went to the Tobacco and salt museum. In the past you needed permission from the government to sell these products. The salt section was primarily educational, and the tobacco section also had a large exhibition of packaging design from all countries and centuries. I am not a smoker, but it was very interesting to see the history of a product/ subject such as tobacco and salt.