Very appropriate day to post this.<p>In my house, I do most of the cooking, the dishes and the laundry. (The latter is because, being one of these work-at-home laptop-bound types, I'm at home a lot.) My girlfriend tends to vacuum and tidy more. But none of this is because we've established an internal market in our home and relationship. Between the two of us, we do what's right for each other, and it just works out.<p>This applies just as well to startup co-founders as it does to marriages. You want to find someone whose best interests you want to act in, and who will act in yours. Life's too short to be negotiating about who's going to wash the dishes, or who's going to pick up the mail. When you're emotionally invested in a person, an organization, a project or a cause, you'll do the right thing for it. And that's the kind of person you want to be in any kind of relationship with.