As you may or may not know, I have amused myself but pondering the best way to address Senator Hillary Rodham Clinton. I find the term "Hillary" a bit diminutive. Even though she uses it herself on her campaign stickers, it makes me uncomfortable to call her "Hillary" while I call the other candidates by her last names. Yet, simply saying, "Clinton" is ambiguous. Of course, using her full name is too long. So I've taken to calling her "H. Clinton" and find that a reasonable compromise. I also think "Sen. Clinton" works rather well. But the April 5 electoral-vote.com post points out that her last name isn't even "Clinton" at all!
She's posted her tax returns on her website, and, according to them:

Her last name is actually "Rodham Clinton"! With no hyphen!
So everyone who's been calling her "Clinton" or even "Senator Clinton" is technically wrong. We should technically be calling her "Senator Rodham Clinton". If you know me, you know how I love to be unreasonably anal about this stuff, so I'm gonna refer to her as "Rodham Clinton" from now on. Well, at least when I write. I reserve the right not to call her that when talking in real life to avoid sounding ridiculous. :)
P.S.: Oh wow, I had no idea people had already made a big deal about her using "Hillary Clinton" instead of "Hillary Rodham Clinton" in her campaign. Man, such a complicated issue, that name.