Via Kottke, the Freakonomics guys look at why things like knitting, cooking and gardening have become leisure-time hobby activities, while things like laundry have not. One of the commenters made the insightful remark that laundry does not have an end product that others praise, but I don’t think that entirely explains it. Also, I think it’s problematic how they count knitting hours as labor hours when it’s often time that would have been spent watching t.v., on the train, etc.