Any advice on good sources for car covers

[FhPt]

I have a 98 Nissan Sentra, that I'd like to get a car cover for. I want an outdoor one that isn't too hard to put on and pull off on daily bases. I mostly want to keep the sun off the car and try to keep the interior from getting as hot, when it sits outside. So, I want a cover that is good at blocking the sun and heat.
Does anyone know of some good sources for car covers?