These ARE useful:

With over 1.44 billion active users monthly, Facebook is a social media behemoth. Americans spend around 40 minutes a day on it, accounting for nearly 20% of total time online.

But did you know you can:

1. Share a post with everyone except one person.

Friends with your boss or colleagues on Facebook but don't want them to know just how hard you partied last night? You can post a Facebook update and exclude only certain people from seeing it.

How to do it: Facebook app > start a post > dropdown menu below your name (starts with Friends) > Friends except ... > Add all the Friends you (don't) want.

2. Have Facebook stop automatically playing videos in your feed.

Surreptitiously scanning your Facebook news feed during a meeting gets a lot more conspicuous if a video suddenly starts emitting loud sounds of a cat falling down a staircase.

Change your settings to prevent such autocratic auto-playing. Not only will this save your sanity, it will save you a lot of data on your phone plan.

How to do it: Facebook app > More > Settings > Account Settings > Videos and Photos > Auto-play > Never Autoplay Videos.

3. Change your relationship status without alerting the known universe.

Heartbreak is hard enough without your college roommate's best friend reaching out about your newly single status. You probably didn't know you canswitch your status without announcing it to everyone in their news feed. (Note: You can also do this with job changes.)

How to do it: Your profile in the app > About > Relationship > small button on bottom left with silhouettes > change to Only Me > switch status to Single (or whatever you like). Changes will not appear in others' news feeds.

4. Teach people how to pronounce your name correctly.

Tired of having to explain it all the time? Let Facebook do the work for you.

Profile page in app > Edit info > scroll down to + How do you pronounce your name? This will then show up for people in your "About" section.

5. Disable Facebook Messages-read receipts (when it says "seen").

If you're like me, you don't always want people to know when you've seen their Facebook messages. Sometimes you'll even studiously avoid a message because you know once you open it, you'll feel forced to reply.

Fortunately, there's an app for that -- sort of. While you can't avoid read receipts on the Facebook mobile app, there are several options on desktop. The free app Unseen allows you to secretly read Facebook messages without the sender knowing. Unfortunately, enabling this superpower means you won't be able to see when others have read your messages. It's not perfect, but it's better than avoiding messages altogether for fear of being "seen."

How to do it: If you're using Chrome, download the extension Unseen for Facebook. If you use Firefox and/or Internet Explorer, install Chat Undetected.

The other two tips are exporting birthdays and saving bookmarks.