You've put a lot of care into choosing your furnishings. And with continued care at home, they should share your address for many years to come. Now for your owner's manual...
Dry immediately after washing.
If washed with detergent or soap, reseason cast iron.
Highly acidic foods may react with cast iron.
Reseason by baking vegetable oil into pan at a high temperature.
If rust forms, scour to remove and reseason.