It’s 3 o’clock on a Saturday afternoon. You go to a supermarket to buy a few things you need: just coffee, milk and eggs. You take a trolley and that’s your first mistake. Now you won’t feel the weight of the things you buy, so you might buy more. And the trolley is so big and deep!You go into the store and first you pass beautiful flowers and plants. Then you see the fruit and vegetables. Those red, green and yellow peppers look so delicious and fresh. And they’re on special offer. Perhaps you’ll take just one packet. And then you come to the bread counter. Oh, that fresh bread smells so good! Much better than yesterday’s bread at home. Perhaps you’ll just buy ... And so it goes on.