What are some Norwegian Christmas traditions?

Many Norwegian Christmas traditions are very similar to North American tradition. However, there are some differences. For example, it is a tradition in Norway to make baskets full of paper ornaments to hang on the tree with your family. You are more likely to find a Rib of Lamb instead of a Turkey in a Norwegian Christmas dinner. The Norwegian version of Santa Clause doesn't go down the Chimney, but knocks on the door instead.