At under 3 pounds, a MacBook Air has been my loyal traveling companion for the past two years. With a 13.3-inch display and dual-core 2.0 GHz i7 processor, it's got every bit of processing power I need to check email, write stories, surf the web, process PDFs, and even do some light video editing. I've never missed the optical drive once. But the best part is just how small and light it is. Sometimes I even forget it's in my bag because of how light it is. That's something that's never happened with any other laptop I've owned. For me, the Macbook Air's convenience makes the decision of whether to bring it along on even a short trip a default "yes" every time.