Lichess Tips and Tricks, Little Known Tidbits

I don't know a terribly large amount of tips and tricks, hoping you all could add to this thread.

I did just notice that you can press "z" during a game to enter zen mode. lichess.org/faq#hide-ratings

What tips and tricks do you know of?

Pressing F11 in most web browsers will put the website into full screen.

There is a ton of options to use in preferences that's worth taking a look at.

I don't have anything else to add since the game and website is straight forward.