Everyone gets their own indoor mailbox
Metal mailboxes spray painted...outside kids bedrooms. And leave them little notes, any mail they get, some treats, etc. Then they can hang their backpack and coat on the hooks! GREAT idea!
Coloring thank you note cards. Love this for kids who can't write yet, but still to have them contribute! ~ writing thank you notes is an art that should be fostered early and often, then it will be automatic when they are grown up.