In the mornings, I close most of the 26 windows that I opened the previous evening.
In a house without air conditioning, I rely on this simple act and fans to stay comfortable in the summer heat.
From there, I move outside where I open a few of the 25 gates that give sheep and horses access to pastures. Instead of staying inside and eating hay and grain, the animals wander the fields picking their own dinner.
I suppose it'd be easier to turn on air conditioning and throw the animals some grain.
But opening and closing gates and windows gives me fresh air, exercise, space, so much space.