During my broke college days, I worked as a grocery checker. Surprisingly, it was a job I really enjoyed—I got to talk to all kinds of people and marvel at the weird things they bought. (Like the guy ...

The numbers on fruit stickers have a secret meaning for shoppers.

When most of us eat fruit, we just peel the sticker off and don’t think twice about it. It’s just a natural part of consuming Mother Nature’s goodies. But how many of us knew these stickers were ...