Crammed with junk or neatly organized?

You can learn a lot about someone by sneaking a peek into their medicine cabinet.  You can learn just as much, or more by their refrigerator. Not just the inside, but the outside too.

A new book called Life at Home in the 21st Century is about what a bunch of researchers from UCLA found out after following 32 dual-income middle class families with young children

The state of your refrigerator is usually a strong indicator of how you run your home.  

High counts of objects on refrigerator doors means large numbers of objects in the house as a whole. Put another way, a family's tolerance for a "messy" refrigerator may be associated with a fairly relaxed attitude about clutter in other rooms of the house.

Magnets low down on a fridge are a dead giveaway of children.

The lack of kid stuff means the person is child-free.

Nothing on the fridge is the sign of a neat freak!