My mom made quite a bit more than my dad, they had similar jobs, however, both teachers at high schools. My mother had her Ph.D., whereas my father only had his masters. It was always funny to see waiters, mechanics, etc. hand off the bill to my dad, then he would make it a point to transfer it, in front of them, to my mother.

I'm in a similar situation now, I make a bit more than my fiance, and he's gotten into the habit of just pointing to me when the check comes. People still occassionally look surprised.