Newbie to chicken keeping and a question about incubators

[icanmakeyouicecream]

Good morning, I'm new to all things chicken!

We've got an incubator coming this week and we are so excited. I know I need to purchase the eggs once the incubator has arrived but I would like some personal recommendations on what else I need to buy? Anything essential I need to know? I have a book coming tomorrow but I am so eager to gather all the info I can!

Thank you