Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.A couple weeks ago, I implored everyone to link all of their credit and debit cards to an I-dine program. For those of you who participate in American’s program, you can now earn double miles on your next five dines as long as you complete surveys.Now all you need to do is invite a bunch of friends or coworkers to a group dinner and pay for it on your card (recouping cash from everyone else, of course!). Or charge gift certificates at a popular restaurant and give them out as gifts. Or really go wild have a bar-crawl style night of drinking at all I-dine establishments - the possibilities are endless!