Our four year old has never minded grocery shopping. He likes driving the carts that look like cars and he's usually pretty anxious to help get items off the shelves for us. However, grocery shopping has taken a whole new level of excitement with the new U-Scan machines at our local Vons, which allow you to ring up your own groceries. Our son loves it. The computer screen full of buttons to touch, the beep that sounds when he scans the product and even the bagging. And I have to admit, I kind of enjoy doing something with my son that makes him so happy. (Apologies to anyone who waits behind us in line -although we do speed it up once we see someone is waiting).