Let me see. That must mean things like extra strength coffee warmers. space heaters for the heads, extra chipping hammers to de-ice the ship. 
Spent most of my 4 years above the arctic circle in the summer months. Once the sea turned to slush we'd head for the Med for a liberty tour, then the Caribbean, then home port for Christmas. The Navy used to have pretty good foul weather gear, wool sweaters, and heavy duty green foul-weather coats. When the seas would calm down some and we weren't taking spray over the bow, we'd de-ice. We had two trash cans full of baseball bats and about a dozen sledge hammers with one side pointed the other side flat. We'd frequently lose a couple lifeline stanchions and some snaking. Being a bosun and on the deck gang this de-icing was hard work and it had its dangers. We would frequently have man-overboard drills, because it was critical to get to a man fast in those waters. On bridge watch we'd rotate lookouts every half hour. Norway was by far the best liberty stops, plenty of great looking, friendly girls.
