Good for you if you quit Facebook! Its almost a form of addiction. I stopped using it years ago when I discovered how it can hurt you in the work place.
Your coworkers and bosses often friend you and look over your profile and postings, heard many mocking conversations because of postings or how one of your friends looked in the pictures or where someone went over the weekend.
Also it makes you feel like your life is boring when you have multiple pages of friends activities over weekends or holidays LOL