As a kid we (my mom, my sister and me) would open our gifts on Christmas Eve. The next morning we went to my aunts where my entire family would celebrate and after lunch we opened more gifts. After that it was off to my fathers house to open presents with his side of the family.
Now we just open them whenever. Since we don't have any little ones running around its just the adults and I guess it has lost something. Oh to be young again!