Did you know that you can create a totally, top secret group on Facebook that only you, and people you invite to join, can see?
We have taken a quick look at how to make such a group, and some essential settings once you've got it all set up.
Take a look through our easy-to-follow walkthrough in the how-to gallery above. Let us know in the comments if you use private Facebook Groups — and what you do with them (without giving away all your secrets).