I picked this up from another website... *Pay for two nights and the third night is free. Weekends only. Must pay with Amex. Book by January 31, 2009 and stay by March 31, 2009.* For arrivals Thursdays - Saturdays. (So you can stay Thursday, Friday and Saturday night *or* Fri/Sat/Sun *or* Sat/Sun/Mon) This even works in December, the busiest month. http://www.welcometowhotels.com/nightonus/?IM=WH_HP_PRIM_NIGHT ...