Last year at this time, I was pleased to learn about grocery stores tagging fruit with laser tattoos instead of stickers. I still haven't seen this at my local stores, though, which is frustrating because I hate pealing off the stickers. (And yes, I know the stickers are edible. But I still can't convince myself that it's okay to eat a sticker.)
But here's an even bolder idea: advertising on food.
The New York Times reports that CBS has launched an ad campaign using eggs.