Other hacks involved ways to accrue points other than by flying. Airlines have long had affiliations with credit cards. These cards offer miles with every purchase, but often also large mileage bonuses when signing up. The hack is obvious: sign up for a lot of credit cards, and cancel before any fees accrue. One man opened a credit card and immediately bought $3,000 worth of Amazon gift cards to qualify for a sign-up bonus. Another filled his garage with blenders for a promotion offering extra points on appliances. A third boasted that she had “taken out over forty-six credit cards in five
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