- Put anything on Facebook you're willing to have on a public web page. Stop there.
- Don't use Facebook's messaging or email.
- On desktops and laptops, run Ghostery and Privacy Badger. This keeps Facebook's "like" buttons from tracking your browsing.
- Don't run Facebook's phone app. It's way too intrusive; it gives your contact list to Facebook, just for starters.
- Remember, sharing is spamming. Don't "share" links from others on Facebook. That makes you an unpaid employee of Facebook's ad engine.