great analogy for software but how many people really need this advice for traveling? instead of this over-generalized "half of what you need" and then "lose

great analogy for software but how many people really need this advice for traveling? instead of this over-generalized "half of what you need" and then "lose another half" make a short list of the bare necessities -- and why you need it. but I guess this is advice for tourists? not sure who has three bags going down cobble stone roads.