In article .net,
Norminn wrote:

Even at 80 deg., a ceiling fan would make you feel cooler..won't cool
the house but would increase comfort level. Perhaps an exhaust fan in
the upstairs window that would draw cooler air into the house with a
window open downstairs/shady side. For windows on the sunny side, cheap
white or reflective window shades would keep a good deal of heat out.

Now that I finally think of it, re those hot ceilings, hot
via the attic, don't forget to consider the heat you yourself
receive via RADIATION from that ceiling.

And also window-glass that gets hot from the sun.

David