Outdoor Car Cover

Fellow i3-heads:

I park my car (2020 BEV) outside in an area where tree detritus falls and creates a mess on the car, requiring regular cleaning and washing.

Thinking about trying to solve this by putting a cover on the car. I’ve never used one before, so wondering whether you have any suggestions or words of wisdom.

Ideally, I’d love to find one that is quick and easy to put on and take off, and that is machine washable.