Keeping interior cool

[whytry]

How do you guys keep the interior cool within your car? I am about to get new carpet and dynamat, but I want to try to reduce the heat that comes in the car through the floorboards. Any products you guys have used and would recommend? Also where did you get what you are using?

For example, my 68 Camaro was pretty warm inside today while driving it, and it was not even that hot here in San Jose, but I was really warm in it. I would love to find a way to try to keep it a little cooler inside the car if possible.,..

Thanks guys!!!