Bergen is a good place to buy wood. It is quite hard to find mature trees on the east coast and timber is needed to build houses, boats, barrels and carts.
Bruges is a major port in Flanders, a region well-known for its fine cloths. Its weavers create the most delicate embroidered linen in the whole of Europe. Their designs are very fashionable among the wealthy in Scotland.
Which card will you play?
What are you, a merchant or a mouse? You can continue to trade in Berwick, but you'll never make a large profit.