Twelve South’s MagicWand is the kind of device you may need to look at for a few moments before you figure out if you need it. Let me speed that process along for you; you do. If you use Apple’s Wireless Keyboard and the Magic Trackpad, you do. If you haven’t yet been able to justify the purchase of the Magic Trackpad, this is it.

I like the BookArc; let’s start with that. This device from Twelve South is a simple but solid heavy gauge steel arc in which your MacBook, MacBook Pro or MacBook Air can rest in its closed position. Why would you need that? You wouldn’t be asking if you use an external monitor and keyboard with your MacBook. Small is good when you’re considering portability. But when doing work at your desk, it’s better for your eyes and your posture to hook your laptop up to a larger monitor.