There is one problem with how this ome wants to start packing its backpack: its laptop has to go in very early, and if it packs its backpack in advance, that means it has no access to its laptop for a few days
@rox I would start packing everything except that (and anything one would still need) anyway, since it might make one aware of any other issues in the meantime (missing or defective stuff, checking there's enough space, etc)