"... Pack light. Lay out everything you think you need. Then put away half ..."
Pack one away, bin the other. The thing is you have to carefully think what you really need. Is this item required. Done right this is a work of art - it matters though. There are things you cannot do with out. Others are a waste of space. Take for example a mate of mine, Alessandro ~ http://www.flickr.com/photos/agentilini/907130017/