With all due respect I hate business cards.
Or rather, if yours isn't naff then neither is mine that shall mention my educational achievments and my current status as a domestic engineer.
Unless you actually NEED a business card for business, then they're naff. I remember getting one in a party bag of my son's once and rather than think 'ooh that might be handy' I thought 'what a wanker' ... if you're just handing them out to people in pubs or random people you'd otherwise just give your number to (or even, take their number) then they're naffer than naff.
I've been a secretary/PA/executive assistant in my past, it aint all that, and although its a 'spinal' role in a company (a lot lies with you) and I'd never under estimate it, it does not require you to have business cards, and in fact, by handing them out, or even considering it, makes me think you're not completely into your current job and need something with more coudos... being an exec ass requires you to put your ego aside somewhat, and if you can't do that, move one.
If we met, and you gave me a business card, whether I was your bosse's client or a random drinker in a bar I would gently pat you, say 'aw bless' and thus you'd undermine everything you're trying to achieve by actually possessing a business card.
My dh has them out of necessity, he hates them, he''l hand them out only if that's honestly the easiest way, and 9 times out of ten its not. Sorry YABU and naff and ever so slightly sad.