Like I said, I just use one bucket with two microfiber rags, one for paint, one for the wheels. Ideally, I should use two, but I'm lazy.
My car is my daily driver (through two large construction zones at that) so I get my paint and such as nice as I can, but there's no point in obsessing over microfiber polymide content or a bunch of buckets for washing - a one way trip to work covers my car in a layer of crud