I don't have the air conditioners in the windows yet.
I know, I know -- I should, and usually I do by now, but I've been too busy to haul the units up from the basement. I will, though. It's getting too hot and humid for my sleeping comfort.
In the meantime, I am keeping cool with fans and keeping windows closed during the hottest part of the day. I'm also using a visual trick, and I'm not going to lie; it's kind of working for me.
I have a Christmas decoration that's only a holiday theme if I look at it really closely. Otherwise, it disguises itself as an ordinary work of art. It's an empty wine bottle stuffed with lights, topped off by a lovely bow and some other cool decorative baubles. If I shut off the lights in the living room and plug in the wine bottle lights, it reminds me of winter. Winter is cool, and so am I by imaginative osmosis.
It's not quite as effective as having the air conditioners in the windows, but it's an interesting experiment in mind-over-melting. So far, it seems to be working.