That expiration date on your packaged food doesn't mean too much, according to this new video from Cracked (and at least one source that goes viral every few months), so feel free to eat slightly old food. In fact, manufacturers have a hell of an incentive to make their expiration dates earlier than they actually expect food to go bad. If you think it goes bad, you'll just end up buying more of it—because expiration dates aren't actually regulated by the government except for baby formula. 

Sources: YouTube: Cracked