Speaking from experience, there's two main strategies: 1) Diligence, care, time, and luck on the part of the loader, carefully stacking boxes in such a way to

Speaking from experience, there's two main strategies: 1) Diligence, care, time, and luck on the part of the loader, carefully stacking boxes in such a way to make sure there isn't any room for the boxes to shift in transit or fall over when unloading. 2) Just throw it all in a big pile and hope nothing breaks. Both are roughly equally common.