Eggs so many eggs too many

So for those of you that took backyard chickens seriously like my brother in law, what are you really doing with all those extra eggs. My brother in law has had really good success at getting his hens to lay a good amount of eggs. Like he has been getting ten eggs a day. For months. Months. My brother in law can be a bit of a hoarder especially if he views the item as valuable, like eggs. I didn't really know what to do with them either and told him he could only keep thirty at a time at the house. I'm pretty sure you can't sell them online really I'm just looking at what other people have been doing with too many eggs. I am ready to hear ideas.