We concur with Barry. The only other thing that we do, is that we bring a small portable fan that we bought at Walgreens. That helps to circulate the air during the day and it has an added benefit at night--I am a light sleeper and the air cycling on and off disturbs my sleep but with the continuous hum of the fan going and the air off I am good for the night.
- buy one of those expensive shade thingys that you place outside over the windshield. We don't own one of those.
we use those aluminum colored reflectors and then close our privacy shades as well in the evening.
Ron, any shade will work if you keep your car in the garage.