Shopping Ads How do you buy things you want? Do you just walk into a shop, pick something out, pay for it and take it away? Or do you go to several shops and then compare prices carefully? A tiring business indeed! Or do you use a shopping ad? Suppose, you want to buy a shirt. What do you do? Obviously, you can't walk into shop after shop because it's time consuming. Perhaps the best way is to read shopping ads.