I always woke up with a screaming headache on my days off
Oddly, I've never had any ill effects from not having coffee. I drink anywhere from 24 oz to 36 oz on a given day, though I may sometimes drink none.
As for restaurants, I have a commercial Bunn coffee maker in my kitchen for when I'm still entertaining large groups of people in the morning. After retiring and moving here, it was common for me to entertain large groups of people.
It's just a smaller Bunn, with just one percolator and one warming plate on top. I picked it because there would always be at least one guest who knew how to use it, thus reducing my efforts. It sits beside a six-range commercial stove on which I would make breakfast for said group of people.
I typically use a French Press to make my coffee. The coffee maker is only used when there are a bunch of people here, which is a lot less common than it once was. (It was used this past weekend.) I've calmed down a lot and am now married. I no longer do things like bring everybody home with me when the bar closes.

