I kept my name, husband kept his. Most people cope. Sometimes people call me Ms. Daughter's Last Name and I just don't worry about it. Mostly people call me 'Daughter's Mother'. :-) Admittedly I'm in California.

Women who kept their maiden names aren't terribly common in my community, but what IS common is young women (quite a bit younger than me) on their second marriage and second set of kids. So they still end up with names not matching.