What are the best projects to do to solidify AngularJS skills?

Question

JavaScript

Actually, the question is clear from the title :) There is theoretical knowledge, but it is quickly forgotten without practice, what is the best project to do to consolidate these skills? Better yet, even several types of projects, say one to consolidate basic knowledge, the second is more advanced, and the third, the tasks in which would affect the most subtle points / techniques of Angular. You need to get your hands on something.
The following project comes to my mind for the third level of complexity: to make a semblance of a semblance of gmail.com only for my domain. The gmail interface is all in one window, so there are a lot of forms, tabs, various elements, plus there is work with the server, you can even connect nodejs.
What are the opinions on this?

Answer 1

spa blog. For example, at first without authorization and bells and whistles like an editor / feed / comments. Slowly add functionality. Then it will come in handy for yourself, some how to store.

Answer 2

I would start a small product catalog. Then he screwed this and that. Authorization, payment system, ... You look at something at the end and it will turn out cool and useful for others.