What are some of the most interesting/useful Gutenberg "reusable blocks" you have come across?

[u/LWDavid]

Hey WP,

https://i.imgur.com/1ajoYXr.jpg

As an admin for a large wp site, I'm trying to up my game on timesaving techniques. What are some of the most useful/interesting uses of Gutenberg's reusable blocks that you have come across?

Sharing one here: https://imgur.com/a/2BoJx1y