Take the time to curate Facebook Timeline
Over the next few days, everyone's Facebook page will be migrating to the new Timeline format. Timeline replaces your traditional profile page, which is just a snapshot of you today, with a scrapbook of your whole life. Once the change happens, you'll have seven days to clean up before it goes live.
The highlights that make up Timeline are culled from what Facebook sees as important -- the stuff you and your friends have chosen to write or post photos about over the years. So it's crucial to spend time curating it, so your life doesn't come across as vain. If you're not careful, you also might reveal skeletons from your past to more recent friends.