Shoprunner is a service that offers free 2-day shipping and unlimited return shipping at many online retailers, such as Babies R Us, Calvin Klein, and Sports Authority, among others. (For a full list of participating stores, see this link.) Normally, an annual membership costs $79, but American Express cardmembers can now get a free 1-year membership for new members or a free 1-year extension for existing members.

New members can get take advantage of this offer by visiting this link:

• https://www.shoprunner.com/americanexpress

Existing members can extend their membership by visiting this link:

• https://www.shoprunner.com/members/account-overview.php?popup=add_amex_card

Only valid American Express consumer or small business credit or charge cards issued by US banking subsidiaries of American Express are eligible for this offer. Reloadable prepaid cards, American Express corporate cards or American Express-branded cards issued by third party financial institutions are not eligible. (HT SD)