I came up with:
Parenting
Reading
Commuting
Not very unique UNIQUE SELLING POINTS but man, I am so great at commuting, I rock commuting, no one, I SAY NO ONE is faster down the subway escalator than I am, NO ONE is fearlessly applying make-up on the train until the fraction of a second before the doors close again. I ACE COMMUTING.
I wish I had more valuable skills, but you won't find me fronting on the ones I've got.
Buses and trains bow down to me, because I'm the empress of commuting. Not only do I master the art of commuting but I actively love commuting. And as far as I understand, this last fact is what sets me apart from other commuters. They do it because they have to. I do it because I love it.