Merge pull request #6114 from raybellwaves/patch-2

DOC: add tips and tricks

docs/source/getting_started/faq.rst

@@ -21,3 +21,10 @@ Development
 -  `How can you
    contribute? <https://github.com/jupyterlab/jupyterlab/blob/master/CONTRIBUTING.md>`__
 -  :ref:`How can you extend or customize JupyterLab? <user_extensions>`
+
+Tips and Tricks
+---------------
+
+- How do I start JupyterLab with a clean workspace every time?
+
+Add `'c.NotebookApp.default_url = '/lab?reset'` to your `jupyter_notebook_config.py`. See [How to create a jupyter_notebook_config.py](https://jupyter-notebook.readthedocs.io/en/stable/config.html) for more information.