running around with chiquitos

If you've ever wondered what some parents do to keep their chiquitos (little ones) entertained and well behaved while out running errands...pass on by to New Latina and read a few of my secret (or not so secret) weapons.  Especially the Five Points Game I started using a while back.  It works just about every time. 

What are some of your parenting techniques for keeping the peace while shopping with little ones?