I’ve got a little work trip coming up, and because my work involves golf, I’m planning on bringing my sticks for research purposes. I’ll also bring a pair of golf shoes — exactly one pair of golf shoes, and no more. Because that, apparently, would be against the rules.

Who knew?

But yes, as I stumbled upon this week, there’s a hard-and-fast airline rule against bringing more than one one pair of golf shoes in your golf travel bag. It’s specified clearly on the various airlines’ websites, including United, Delta, and American Airlines. And it’s not a rule you want to break, because it could lead to airlines refusing to let you bring your luggage onto the plane.