Second that car cover usage is a concern. You have a perfectly clean car, go for a ride on any day, and there is tons of minute dust in the air. Unless you clean your car every time before covering it, now the car cover is on top of the dust, on top of the paint. And unless you have someone else to help you both put it on each and each time you take it off, the cover will move on the car from the time one starts to cover it until finished, or the time one starts to remove the cover and finish its removal.
And what does one do when the car is wet, with now the dust on the bottom of the car car going onto it (even if the cover "breathes")
I used to use a car cover; do not even own one now.