If you feel like using JupyterLab and want to be a precursor of using the interface that will become a standard in a short time, you can just switch from issuing $> jupyter notebook to $> jupyter lab. JupyterLab will start automatically on your browser at the http://localhost:8888 address:
You will be welcomed by a user interface composed of a launcher, where you can find many starting options represented as icons (in the original interface they were menu items), and a series of tabs offering direct access to files on disks, on Google Drive, showing the running kernels and notebooks, and commands for ...