Clomid isn't a drug to be taken lightly.  It isn't something you go on just because you want twins.  How ridiculous.  It's a potent drug and shouldn't be misused just because you want multiples.  If you're having fertility issues, and are under the care of a fertility clinic/doctor/RE/OB, fine.  If you have no fertility issues and can get pregnant on your own, do not put something into your body that isn't necessary.