burning the midnight oil

So I finally started writing my book after much procrastination.  I have to say, I'm loving it.  I've always been nocturnal, me, but society has forced me into the daylight over the years.  I found myself pleasurably working deep into the night such that I had to actively instruct myself to go to bed.  Were it not for the dentist appointment in the morning, I may well have stayed up all night like the good old days. 

And yes, that's a blue yeti.