Grandparents are an important part of our families. They serve as babysitters, a place for kids to stay overnight on occasion, and when moms and dads discipline the little ones, grandparents are there to slip the kids 50 cents. And, September is National Grandparents Month.

Here are some interesting grandparents' statistics from Family Circle magazine:

* There are approximately 56 million grandparents in the U.S.A.

* 8% of all U.S. children live with at least one grandparent (President Barack Obama lived with his mother and grandparents in Hawaii from 1971 through high school).

* 1.9 million grandparents serve as sole caretakers for their grandchildren.

* 38% of grandparents say that they would be happy to look after their grandchildren for more than two weeks at a time.

And here's one statistic that we all know about our grandparents. They are a source of wisdom. For those of us fortunate enough to have living grandparents, we can always rely on them for sharing their words of wisdom that they have learned through experience.