Silly fluff: Doors inside your house...

No children in the home.

All closet doors are closed (except on occasion one of us will leave our closet door open)
All bathroom doors are open.
All bedroom doors are open.
Door between dining room and kitchen is open.

All doors closed. Prevents unexpected canine adventure. (Exception: master bath and closet are usually open, because dogs can't make it past the closed bedroom door.)

Every door is closed.

The only interior doors that are closed all of the time are the laundry room door, the pantry door, and all closet doors.

Every other door depends on time of year, who is home, who is doing what, etc.

When we are home pretty much all doors are open.
When we are away we close the bedrooms to the dogs because they like phone charger cords and sneaking on the beds (where they are not allowed) while we are gone.
When we have guests over the bedrooms are all closed because personal space (and messy people lol)

All doors open all the time. Unless I have company and need to close off a messy room...

The closet door in the guest bedroom and two hall closets are always closed. Everything else is almost always open. I do close my bedroom door when I am expecting company as it opens into the living room

I like my doors all closed at all times if possible. We do leave our master bathroom door open at night so the dog can go in and lay down on the cool tile. I don't like it but I deal.

On the main floor, there's only a door to the closet which is actually my craft closet. That's rarely closed except when we're not home. I put my craft trash can (which never has food in it) in the closet and close it because the beagle found one wrapper one time and now dumps it out if we're gone for more than a couple hours. It's a pita to clean up threads and scraps so we shut it the closet. There used to be a door to the kitchen and the basement. Those are gone now.

Upstairs, our room is always closed. I'm not allergic to the animals but I will itch like crazy if there's animal hair in our bed. We started keeping it closed to see if that helped with the nighttime itching. It stopped almost completely so the door stays shut unless I'm washing the sheets. The boys keep their doors shut most of the time. The bathroom door is always open unless someone is occupying it.

This is us, too.

I love your new photo/avatar! You look lovely 

Thanks sweet pea friend!!!

I am in So Cal and I don't have air-conditioning. I really, really hate air-conditioning. We are a few miles from the beach and we get an ocean breeze every day.  We don't have a lot of bugs either. However, my house always has dust but it's worth it. It has to be really cold before I close up the house. Even in January and February it is usually comfortable with the doors and windows open. On really cold days I sometimes close the house after an hour or so. Our drought out here has finally ended and last winter we sat here with pouring rain and all the windows and doors open enjoying it.