Denny's is giving away free Classic Grand Slams to its rewards members! If you were a Denny's Rewards member *before* November 3rd, you're in luck. This is basically free breakfast (or lunch, or dinner - hey, it's Denny's!). Why does this matter to you? Well, free food is always a win! It's a super easy way to save a few bucks. Just check your Denny's Rewards account for the offer and redeem it. Think of it as a little "thank you" from Denny's for your loyalty.