I traveled from Nanaimo to Calgary, got the sat phone, organized gear, and began my obsessive cutting of weight, knowing I had been "volun-told" to be a bottle carrier. In the end a 45-liter bag held all of my gear. Well, on big trips I go light and fast and understand the commitment. If I get cold, I must move faster. If I carry in a jacket, I sleep in it so I can use a lighter sleeping bag etc.