Signing up for a rewards credit card and earning its welcome bonus is one of the easiest ways to earn a ton of points, miles, or cash back.
While some credit card bonuses stay largely the same, others increase from time to time. Pay extra attention to these limited-time offers.
In August, you can score enough miles for a free flight to Hawaii with one limited-time bonus, and more than 100,000 Hilton points the hotel brand's co-branded card. And the Chase Sapphire Preferred Card's offer remains a...
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