Free Quiznos sandwich
The best way to add a million names to your sandwich marketing list is to give out a million sandwiches. More marketing dollars should be spent like this. Not only do you get a lot of names to market to, but you get a lot of foot traffic in your stores. All for less money than any decent ad buy would cost. It may not be as clever as deleting friends on Facebook, but I bet it’s more effective at getting actual traffic.