With your family, brainstorm and create a new family tradition. This doesn't necessarily have to be adoption-related. It can be a new tradition for the upcoming holidays, or a family summer tradition after school has ended. The important thing is to continue growing closer as a family.
This could be kind of fun. S is experiencing her first year of everything: Easter, summer vacation, Celtic Classic, Halloween, Thanksgiving, Christmas, New Year's, Valentine's Day, etc. I'm sure we could come up with something that's a new and unique tradition. We've discovered a new town in New England that perhaps we'll try to visit every year.
For some reason I'm thinking we may come up with a charitable donation in S's name, possibly something adoption-related, but I'm not sure yet. I'll keep you posted.