1.   But Giant shoppers are using an increasing number of coupons generated by scanners at the checkout counter, Scher says.

2.   Disciplined shoppers can use a credit card.

3.   Supermarket shoppers could use Tesco personal finance.

4.   Today more shoppers are using coupons and buying items in bulk.

5.   Aside from price and dietary backlash, the resurgence in butter sales may have something to do with how shoppers use the product.

6.   Car shoppers have also used the Internet to find lease deals they otherwise might not know about.

7.   Consumer advocates say prices on individual items are a key tool used by shoppers to compare prices and detect checkout scanner errors.

8.   For example, in several countries in Europe, shoppers are using their cellphones to pay for sodas at vending machines.

9.   For big purchases, most shoppers still use their credit cards.