Originally Posted by mooper

I can't vouch for the ability to combine the Ebay offer you cite with cash back, but typically, two forms of cash back/rewards aren't stackable. However, if they are in this case, I'd suggest using the BigCrumbs cash back of 4% over eBates' 3%. (My referral link to BigCrumbs is in my signature, thanks!) Also, there are currently offers for a 10% bonus deposit on gift cards (promo code MMF at checkout) and an offer for 10 MR points per dollar spent (up to 25K points, no promo code needed, and not stackable with the 10% bonus). Both of these should be stackable with *one* cash back/rewards offer, such as BigCrumbs. If you have a Chase Visa Marriott Signature Premier card, I suggest using that for yet another 5 MR points per dollar. Last, when you actually book your room, use BigCrumbs for another 4%, and of course, check on AAA rates versus other room rate codes. How's that for simple?!