What are the weaknesses of Tesco's national campaign 'every little helps'???????

I%26#039;m not sure I know that. However do you remember Sainsbury%26#039;s slogan





%26quot;Good food costs less at Sainsbury%26quot;?





They stopped using it after I wrote and asked %26quot;Less than what%26quot;. They couldn%26#039;t come up with an answer!