Housework was a woman's job......

 but one evening, Janice arrived home from work to find the children  bathed, one load of laundry in the washer and another in the  dryer. Dinner was on the stove, and the table set. She was  astonished!

It turns out that Dave had read an article that  said, 'Wives who work full-time and had to do their own housework  were too tired to have sex'.

The night went very well. The  next day, Janice told her  friends all about it. 'We had a  great dinner. Dave even cleaned up the kitchen. He helped the kids  do their homework, folded all the laundry and put it away. I really  enjoyed the evening.

'But what about afterward?' asked her  friends.

 'Oh, that........... Dave was too  tired.'