Not sure if this is still relevant to you because I see you have another post out there saying you already joined, but maybe this will help someone else: retailmenot.com is a user-built database of promo and coupon codes for lots of different online retailers. They don't
always work, but when they do, you can get great deals. This is the WW page:
http://www.retailmenot.com/view/weightwatchers.com