One Bag (<wbr>all about packing,<wbr> luggage,<wbr> and travelling light)<wbr>There's no question: overpacking tops the list of biggest travel mistakes. So here is OneBag.com, a non-commercial Web site that teaches — in exhaustive (exhausting?) detail — the art and science of travelling light. Here you can learn how to go pretty much anywhere, for business or leisure, for an indefinite length of time, with no more than a single carry-on-sized bag. An experience that can — a
