As a parent it gives me great satisfaction to observe my child use common sense that seems to expand beyond what I thought would be difficult to teach. We went shopping the other day, and while waiting in line we noticed several small items on sale. We've all seen them -- chap stick, gum, candy, magazines, batteries, etc... My daughter pointed to a pack of batteries with an eye catching tag that read 15 Extra batteries with the purchase of 15! Price tag on package read $18.00. My daughter quick