I received an email asking me how I mark my eggs. I tried to reply but the email failed due to the dns error: domain name not found. If your name is Pam and you emailed me here is your answer: I always use a pencil. I write the date collected and the breed on the big end up. I also number the eggs as i weigh them and put them in the bator. If I am hand turning I put an X on one side and an O on the other. When I have a staggard hatch I also mark who I got eggs from if they are not my own and the date they went into the bator. I hope this helps!