Hilton is bringing in the summer with a promotion that is sure to fatten your mileage and HHonors account. Hilton is doubling the Double Dip. To qualify for this promotion, simply stay once from June 1 through Aug. 31, and every subsequent stay during the same period will earn double miles. To earn double points, pay with an American Express card.

Don’t forget to present your HHonors and airline program account number at the time of reservation and check in. We know you are aware of this, but since double miles and double points are at stake, we thought we would double, double check.