I forgot to add, do not ever give personal information in your profile to Facebook. That personal information is quite valuable for marketing purposes. Be a net drain on their financial structure.
I realized that Facebook does not need for me to divulge my information to know a lot about me. They figure it out from who my friends are and what THEY may post to me or about me. For example, I may not say that I have a daughter, but if my daughter links me as her father, now they have that relationship and I never gave it to them.
I cancelled my Facebook profile a few months ago and have not missed it.