Is there a way to sync settings across JetBrains IDEs?

Question

What is the best way to sync similar settings across JetBrains IDEs? For example I have PyCharm and PhpStorm, both of which support CSS and HTML, and I would like to have all of

Answer 1

2021 new feature:

File -> Manage IDE Settings -> Sync Settings to JetBrains Account

It takes care of the sync for you in the background to all your JetBrains IDEs, hands free.