Shimokitazawa is one of the coolest sites in Tokyo. You might enjoy exploring this area without a guide book since it has lots of cute cafes bookstores, and thrift stores. Another important culture of Shimokitazawa is music. A venue called "Garden" offers cool music all year round. If you look at a map, you can see it is located in Setagaya Ward. It takes less than 10 minutes from Shibuya station.