The rise in two-income households takes a large share of the blame for the time pressure that many couples face.

He added that the conflict between taste and health was most pronounced in two-income households earning more than $40,000 a year.

- "I live in a two-income household, but who knows how long my mom can keep that up."

There are now more two-income households, and many more of them without children.

"When you have a two-income household, a week away is a big investment."

The method falls particularly hard on two-income households where the spouses work in different states.

He said he believes that the increasing number of two-income households is the driving force.

With more and more two-income households, many children have started their school experience in day care - before they were even out of diapers.

Only two of the 22 applications were from two-income households.

That might mean downsizing from a two-income household to a one-income one or moving to the country.