Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I would just let them get dirty until you wash them again. That might be a better alternative than scratching.
You can use a quick detailer on them if they aren't too dirty, but I always wonder about those... how dirty is too dirty before you start scratching the heck out of the paint.