@GC-Raptor makes an important point, it's not just about storing eggs, but rotating eggs, you want to be sure you know which are the oldest and which are the newest so that the oldest eggs are consumed first; having a system in place allows you to do this without too much thought. I also keep the oldest eggs on the top shelf and cook from the top carton first in my home. Eggs on the bottom shelf are newest & also the ones I pick from when I sell some.