In good weather, I use a foam cannon, high volume pressure washer, 2-bucket wash with grit guards, multiple edgeless microfiber washmits, microfiber towels, a soft wheel brush, and boar hair detailing brushes. My favorite products are usually from Meguiars, Carpro, Autoglym, and Polish Angel.
In the winter, I take it to the touchless car wash at least every week or two when it’s not freezing. From time to time, I may use Sanzo waterless wash in my garage to spot clean bird droppings, tar, and bug splatter before they bake and cake onto the surfaces.