When you know your course, it is pretty easy to know where to hit it and what things do on the greens. I can’t remember the last time I had a putt on my course where I didn’t already have an idea of what it was going to do.
Having the car makes it a lot easier for packing purposes. I would probably bring 10-14 days of clothes and just plan on laundry like you said.
Two pairs of shoes, probably 3-4 hats