I'm going to be attempting to sell Langshan and Barred Rock hatching eggs (topic in the Hatching Eggs sales forum because I don't know how much to charge for them? https://www.backyardchickens.com/forum/viewtopic.php?id=124535 ) and I just realized I don't know which carrier to use or how much the general price is for shipping eggs? Has anyone used a service that they will never use again? Why? Any help is greatly appreciated!