He'll get really excited and start planning a trip.
He'll want the Crafter to look the part,
so she'll get out her longest dress and mob cap.
Princess Pink will feel left out, so the Chemist will go up into the hot attic and bring down bins of the Crafter's outgrown clothes. We'll find something that works.
When the girls have their costumes, Wild Thing will feel left out. There's no time to make a costume, so we'll just roll his pants legs up and buy him a pistol.
Then the Historian will suggest that his wife dress up,
so the Chemist will dig out ye olde big skirt and colonialish blouse and borrow an apron.
Then realizing that she has no suitable head covering, she'll buy one of the overpriced souvenir caps from Market Square.
Once the Historian's family is dressed as the gentry class of colonial times, he will need his costume. He will notice that he has no stockings. He will need to go out to buy some.
He'll go to the store, but will be too embarrassed to purchase them. He'll make the Chemist buy them. When she picks out some lovely black queen sized knee-highs, he'll decide that they are too sheer and make Wild Thing wear them.
He'll want to back the next day to get white ones. The Chemist will have a horrible headache and be unable to go, so he'll take the Crafter.
They won't have any in his size so he'll go to another store and another and another.
He'll finally end up with some white opaque tights with a reinforced toe.
We will get back really late. While lying in bed, the Historian will start reading through the stack of brochures he picked up one the trip. And chances are, if the Historian sees the dates for the next set of homeschool days, he'll get really excited and start planning a trip.