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 ...
Pick a pear at the grocery store — or an apple, tomato or banana, for that matter — and you’ll notice that it wears a little sticker containing a mysterious number such as 4035 or 94035. The numbers ...