[Pephers]

Nothing to do outside of crop agriculture in Viking times gives time for:

- Building housing and barns

- Chopping firewood

- Shipbuilding

- Wood working

- Weaving fabric (linen) from the summer harvest

- Ropes

- Leatherworking

- Metalworking/blacksmithing

- Pottery

- Animal husbandry

- Hunting

- Fishing

... and probably lots of other things that were necessary during those times. Of course Viking raids are a different means of acquiring a lot of the above.