Whether you're traveling the world or going on a long weekend, packing the right things has a huge impact on your trip. Pack too much and you're carrying dead weight for the whole trip; too little and you don't have the things you need. When I pack, I start at the very beginning: the bag. If you're flying, what are the size restrictions for your luggage? If you're driving, how much space do you have in the car for your stuff? If you're taking a train or a bus, what can you wa