Even if you use Facebook every day, you still might not be doing it right.  The website Lifehacker.com has a list of things a lot of Facebook users do wrong.  Here are the top four.

Basically, we're just not meant to sit at a 90-degree angle, and our bodies are more comfortable either kneeling, reclining, or sitting on a stool or a bench.  So you've been sitting wrong your whole life and never knew it.

Here's a list from Cracked.com of three more basic things you won't believe you're doing wrong.