I'd heard about this a few days ago, but wanted to wait until the official word went out tonight during the Super Bowl. In case you missed the commercial, Denny's is giving away a free Grand Slam breakfast to everybody who wants one this Tuesday from 6am to 2pm. What the commercial didn't mention was that in addition to the free breakfast, each Denny's location has been given 1,000 coupon booklets to give away on a first come, first serve basis.
I'll provide a link as soon as I can, but their site crashed after the commercial aired. (edit: Their website is back up and running, so here's the proof.) I don't know about you, but I think that was the most exciting thing to happen all night so far.