Use a lint roller for the top and wash at a pay station when ever you can.
I use the RaggTop brush when I had my s550 coyote vert. Really gentle but deep cleans and didn’t pill up my top.
https://s.yimg.com/aah/autogeek/ragg...p-brush-33.gif
I used Griots convertible top cleaner as it rinses clean.
https://s.yimg.com/aah/autogeek/grio...cleaner-27.gif
As for washing car look into a rinseless over most waterless washes. To do it the safest without marring your paint, look up Gary Dean method.
Use alot of microfiber towels.
If you love your car, like to keep it as swirl free as you can and dont mind spending a little dough, check out Ammo NYC Frothe
https://m.youtube.com/watch?v=pDxRPQLh_zA
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