Perhaps it's just that I haven't actually bought dairy products prior to this year, but it seems like the shelf life has gotten longer.
I'm fond of breakfast cereal (Oat Flakes or Captain Crunch, but not the Captain Crunch Swirled Berries), baked potatoes, and the occasional taco. But the problem with all those foods is that they require either milk or sour cream and I never use up the milk or sour cream fast enough to avoid having half of it acquire a strange odor and some small degree of sentience.
However, Jaru bought some ultra-pasteurized milk just a bit ago and it had an expiration date like one month after purchase. I'd swear that it used to be that you were pushing your luck if you didn't drink the milk in the car on the way home. And I've got this sour cream that's refrigerated-aisle-legal until July 11.
Our local grocery chain (which has some weird almost-monopoly on San Antonio shopping) has this milk-like substance on sale called MooTopia. Actually, they say "it's real milk, only better." I'm a bit put off by the milk that HEB isn't quite willing to call milk -- but I also realise that's inconsistent of me given my general fondness for chemically and genetically engineered food products.