Do you have trouble getting your preschooler to cooperate? (That was a joke…of course you do—they're preschoolers!)

One simple change you can make--without much effort, without discussing parenting philosophy with your spouse, without brainstorming rewards or meting out punishments— can make a significant change in how cooperative your preschooler becomes.

And don't tell, but it will probably work on the adults in your life, too.