Know-How Exchange : Strategy

Our customers composed mostly of families with children. We would like to offer a promo that will hit 2 birds with one stone. We would like to have a Child Appreciation Day 4 Sundays next month. Our idea is to give out free donuts on the 1st Sunday. Free one cup of juice drink on the 2nd Sunday, art materials on the 3rd and stickers on the fourth Sunday. The reason for the Appreciation Day is to attract more families and parents to our convenience store. He hope that when the children come to get their freebies, the parents will buy from our store. How can we make sure that parents would buy from our store?