[dreadpirate15]

Central house fan my friend. Not too difficult to install if you're comfortable cutting sheetrock and doing a minimal amount of wiring. Run it for 15 minutes and you'll have your house cooled down considerably.

I do agree that having the house designed for good airflow in the first place would be ideal.

[HeyLaughingBoy]

I have one of those. Sucks in cooler air in the basement. Takes hours for the temperature to drop a single degree.