[Feuilles_Mortes]

I'm in a similar position to you in regards to facebook. My strategy is to use custom CSS to remove the elements of the site that only serve to distract me (newsfeed, etc.). I still get notifications for events, chat, etc. so it works out alright.

[walterbell]

Are there example open-source stylesheets to accomplish this filtering?

[blacksmith_tb]

Many of the user styles (e.g. for Stylish) are purely cosmetic[1], but you can see what elements they're matching on and roll your own.

1: https://userstyles.org/styles/browse/facebook