For some of us, it's all about symmetry. We need things to be balanced. It keeps us sane. Here's a video (made by Everynone) that illustrates symmetry in a creative way.
Symmetry from Everynone on Vimeo.
So, are you into symmetry or are you a rebel who doesn't mind having things a bit off balance?
Have a great (symmetrical or asymmetrical) day (depending on your preference).