Not that I like to necessarily call it this, but last night my husband characterized our decision to put both last names on the baby's birth certificate as "punting." Which, essentially, it is. Once they're both on there, we can figure it out later, or let the kiddo figure it out. No pressure or anything (although Jacobsen is obviously a much more less-abnormal last name than Demerice - just sayin').
I think it was a good decision. One of the best, you might say.