== Ginny's Name Change? == 

 Just a thought, but the epilogue of DH never refers to Ginny as "Ginny Potter."  For that matter, it never explicitly says Harry and Ginny are married (though it clearly implies they have children together).  It's probably reasonable to assume they are married, but is it reasonable to assume that she would take Harry's last name?  Is the name change justified?  Given that many women today do not take their husband's names, is it necessary to change a name that was not explicitly done by JKR?