Go to Account, then Account Settings, then under the Settings tab click on Account Security. This one it totally up to you, but if you login to Facebook from one computer all the time and not your smartphone/cell, you may want to turn this ON. It's also interesting to check this to see when you last logged in and from where.
Under the Notifications tab, uncheck any you don't want to get an email or text/SMS about
Under the Facebook Ads tab, Change the pulldown menu from My Friends to No One
Now go to Account at the top right of the browser, then Privacy Settings.
Under Basic Directory Information, click on View Settings
The default is Everyone. Change this to what you prefer, usually Friends Only.