Guests at select Starwood resorts in North America and South America can receive a second night for 50 percent off when paying with a MasterCard. For every night you pay at the regular rate, you’ll receive the next night half off when making reservations by Aug. 15 for stays through Sept. 4, 2012. Use promotion code ZM5 when making reservations. The offer is nonrefundable and requires payment in full at booking. Click View all at http://insideflyerus.wpengine.com/link/?6652 to view participating properties, including the Sheraton Kauai Resort, The Westin Hilton Head Island Resort & Spa, W Fort Lauderdale and Four Points by Sheraton Quebec Resort.