Through Dec. 31, 2010, Ritz-Carlton Rewards members can earn a free night at a Tier 1-3 hotel for every two paid stays at Ritz-Carlton, up to two free nights. The free night certificate is valid for one year from the issue date. If you are a current Marriott Rewards member, you cannot also be a member of Ritz-Carlton Rewards. So if you participate in Marriott Rewards, you are not eligible for the free night offer. Visit http://insideflyerus.wpengine.com/link/?3002 for more information and to enroll in Ritz-Carlton Rewards.