Which retail coupon site should you use? It depends, really, on what you need or want. Not all sites have all online stores listed. Also, you may find that some coupon sites have better codes than others, or more working codes. E-coupons expire just like paper coupons do, though sometimes you will get lucky and the code will work for a day or so past its expiration date.

You might need to spend a little time finding the best coupon code for any given transaction. Most online stores will accept only one coupon or promotional code, but multiple codes may be available for different types of discounts. Weigh free shipping offers against dollars off or percent off coupons to determine which will give you the most benefit. There are a few merchants who will allow use of more than one offer.