By all means install an AC unit to deal with the worst of it. Just install shades as well when you've got the scaffolding out so you can install a smaller, cheaper, and less energy-hungry one.
Unfortunately I personally live in a highrise, and in a rental unit, so that "small hole and a bracket" definitely isn't an option for everyone.
Unfortunately I personally live in a highrise, and in a rental unit, so that "small hole and a bracket" definitely isn't an option for everyone.