I have my water bowl with the penny before 1982, on day 18, I will put in a sponge , do my last candle, and place them so the slant of the air cell is correct, then promise not to touch until they all hatch and dry off. This is not my first rodeo, but I thought I would leave this thread open for people to give last week tips, and I want to hear them even if you think I already know, because we might hear something new. And we may help others preparing for the big day.
I do have one question too, when do the eggs start generating their own heat?