An egg carton displaying a sell by date and other numbers printed on the side - JollyPopLA/Shutterstock Somewhere beside or below the expiration date, you'll see a three-digit code that spans anywhere ...

Choosing a carton of eggs isn't as simple as grabbing the lowest-priced option on a grocery store's shelves. You've got a few decisions to make: large or extra-large, organic or natural, grade AA or A ...