Depending exactly what you intend to do, a friend who moved recently found that the plastic crates used for picking oranges worked better than cardboard boxes. They are designed to stack so the company doing the removal found it very easy to palletise them and then wrap the whole pallet in film. He was only taking personal possessions, not the contents of the whole house, so using a freight forwarder, e.g. KMF, was a lot more cost effective than a removal firm. Freight forwarders tend to charge less if they can easily palletise things. It speeds up consolidating loads at the different depots on route.