I've gotten in the habit of looking at each night individually (when I have the time) and booking individual consecutive night's reservations in some cases. At one non-Marriott hotel, the weekend rate was like $70, but if I added a Thursday to it I got $119 for all nights. Kept the weekend res, added a separate Thursday one and saved $98 or so. On checkin, I told them I had two reservations and would to not have to change rooms...they accomodated but checking out / in wouldn't have been a hassle for me.