It’s time for American AAdvantage members to take a trip to the mall.

Through Sept. 30, every purchase made at www.aadvantageeshopping.com will earn double AAdvantage miles when members register for American’s “Multiply Your Miles” promotion.

And, if you dislike the mall scene (even the online kind), you can still earn double miles by using a variety of other AAdvantage partners, including AAdvantage Cruise, AAdvantage Hotel, PeoplePC, Earthlink, Alamo, Avis, FTD.com and a host of others.

To take advantage of this offer, members must register at http://www.aa.com.

If you’ve made some purchases from any of these partners since Aug. 2 and are kicking yourself for not seeing this earlier, halt your self abuse and commence registering — the earned miles for all qualifying transactions made during the promotional period will be doubled as long as registration is completed before Sept. 30.