Padvance take a look a TwelveSouth's PlugBug, a fantastic accessory for MacBook owners that work on the road. The site writes: "There's not much else to say about it other than that it's the perfect accessory for mobile MacBook owners. It's small and immensely useful. What's not to like?!? I suppose people that detest the color red or dislike accessories that sound too close to "butt plug" might have an issue with this product, but everyone else (i.e. normal people)? No way. If you bring your MacBook on the road and also bring your iPad, iPhone, or any device that's charged via USB then I strongly recommend the PlugBug."