Yep, that's the move. You don't have to pick up each egg and inspect it. If it rocks, it's good.

If there's just one or two, I look for the bad dozen, which is usually there in the case, off to the side. Open that and replace the good eggs from that carton with the bad ones in your carton. Now you have 12 good eggs, and eventually the store will have a carton of 12 cracked eggs.

You still get dirty looks from dickheads, though, which I enjoy. I'm always pleased to piss off judgemental Karens.