We just booked a trip through Costco Travel. Not even the Department of Defense Travel Service could beat their price. First Class airfare to the 5-star
Sanctuary Cap Cana resort in the Dominican Republic in January. Adults only (aka "no screaming kids running around"); 100% all-inclusive (all food
and drinks); luxury suite with a jacuzzi on the balcony; for a WEEK! Then First Class airfare back. Just a little over $6k for the two of us...
and we'll get around $650 cash back! Unbeatable deal and a great place to go in the middle of winter.