Sunday Reader Question: How many AMEX cards can I apply for in one day?

American Express offers some excellent churning cards, such as the 25,000 no-fee AMEX Gold Card [this is a referral], and the 60,000 AMEX Platinum card [this is a referral]. Many people will go on an “app-orama,” applying for a bunch of cards, including numerous AMEX cards, in a single day. There’s nothing wrong with this. Indeed, you can apply for as many AMEX cards you want in a single day, however, you won’t be instantly approved for all of them.