Mama's House

Both the men and the women who got married did more housework than those who stayed single, the analysis showed. "Marriage is no longer a man's path to less housework," said Stafford, a professor in the College of Literature, Science, and the Arts.

The press release I've linked to is a bit confusing because it seems to contradict itself but this chart doesn't lie. Now I suppose that the increase in housework has more to do with the addition of children in a marriage but the press release wasn't clear on how that was taken into account. Anyway, Marriage = More Work.