5. Reduce your social footprint
Sharing is the whole point of Facebook, but the Timeline layout sometimes takes this to extremes, making it easy for others to see all your activity from years gone by. The good news is that you can disable Recent Activity updates, which broadcast new friendships, groups you've joined and any other changes in your basic information (such as relationship status or political views). Just click on the X next to a Recent Activity update on your timeline and select Hide Similar Activity from Timeline.
This makes the process of hiding certain activities from your past a little easier. But here's the bad news: Individual status updates or posts from, say, your less judicious days need to be removed individually by clicking the pencil icon next to each item and choosing Hide from Timeline -- a process that could take you to the end of 2012 if you've ever been very active on Facebook.
There's a limited solution, though: In the main Privacy Settings window, the second-to-last entry on the list is titled Limit the Audience for Past Posts. Click on the Manage Past Post Visibility link next to it. A window will appear giving you the option to change all past posts so that they're visible only to friends. Click Limit Old Posts to do so.
That will at least prevent anyone other than people you've friended from seeing older items on your timeline. But considering that your boss, colleagues and other acquaintances may be among your Facebook friends, it's still a good idea to review your entire timeline and remove compromising status updates, comments, links and photos. Start with the oldest items first. When you first started using Facebook, you probably had fewer contacts and might have posted and commented with less caution than you've done more recently.
As a last precaution, make sure that everything you post on Facebook moving forward is shared only with friends, specific networks or friend lists: Click the drop-down box next to your status update, comment, link or other shared content and select Friends or a group. For even more granular control over who can and can't see a post, select the Custom option.
It bears mentioning that the last and best defense against digital privacy invasions is common sense. You may want to be a bit irreverent with your Facebook friends -- and there's nothing wrong with that. But ask yourself if you'd wave that questionable photo or say that pithy comment in front of someone who could affect your future hiring prospects. If not, think twice before you post it on Facebook.