ehh ... front side, facing street ... has big living room windows, then the front door to the house, then the home office, and then the master bedroom ...
I sleep in the basement and use the master bedroom as a junk/storage type room, or for guests ... so it's usually closed as I don't go in there very much.
The living room I leave open sometimes, and leave closed if I'm watching TV in there, or if the AC is on.
Office I generally leave closed since the light makes glare and heat.
Back side of the house has kitchen window, patio door, bathroom has small window, and second bedroom window ....
Patio I usually leave the curtain open, kitchen window I have no curtain. Bathroom I leave blinds down, bedroom I used to rent to a friend but currently is unoccupied, usually leave it open.