I love this thread.
I only have an infant but my husband and I have discussed this at length anyway.
We are both very much "anti-stuff" people. My husband is very much so. His biggest purchase for himself was a very nice TV he spent over a year saving for. He never makes a purchase he can't pay off right away. He also bought a nice engagement ring for me and nice things for the baby but he is a VERY generous person and gives to charity all the time.
I really want my children to learn from his example. I think this is where it starts by setting the example yourself.
Take a step back from picking up that Ipad, TV or whatever and give the money to Catholic Charities.
Get the kids involved too and teach them to give as well as save.
They make these super cool piggy banks with different slots that include investing and donation when it comes to saving money.
money savvy pig
Tow the kiddos down to the soup kitchen or have them volunteer with the church with food drives and such.
Some kids can be extremely generous on their own if they are given a nudge.
That and real in the Grandparents.
I'm gonna have to do it since my LO's grandparents are ALWAYS coming over with something and she is only a month old!