Via Budget Travel, I learned about the current Hotels.com Pack More Save More promotion that gives customers cash back for each hotel stay of two nights or more purchased through the site. The offer is good for travel through March 31, 2007, but rooms must be booked by Jan. 31, 2007.

The longer you stay, the more $ you get back. Stay two or three nights, and you’ll get $25 back. Stay more than six nights for $100 back.