I put them in the refrigerator.I'm curious what some of your favorite ways to preserve eggs are?
I mark the date on either the eggs or the carton, and use the oldest eggs first.
Eggs will keep for many months if you just stick them in the fridge.
Many of the traditional ways to "preserve" eggs are from the days before refrigeration. We don't hear about them much now, because refrigerating is easier and works better.
I also make things that use lots of eggs, that can be frozen for later use.
This includes waffles and cookies (I've frozen raw dough or cooked cookies).
Waffles, pancakes, muffins, and many other things work fine with 2x or 3x as many eggs as the recipe says, which makes them a little more nutritious too.
I see people have already mentioned freezing the eggs, which I would do if I had a big oversupply.
But if you have way too many eggs in the summer, those same chickens will probably be laying at some rate through the winter too-- so you might not need as many preserved eggs as you think.
Other than preserving eggs for yourself to eat, if you have way too many, you can give eggs away or sell them, or cook them and feed them to chickens or to a dog.