How should I wash microfiber towels so they last?

Detailing-community threads we read consistently advise washing microfiber separately from cotton (which sheds lint into the fibers), using a dedicated microfiber detergent or a small amount of regular detergent, skipping fabric softener entirely (it clogs the fibers), and tumble-drying low or air-drying. Sorting towels by job (paint-only vs. wheels/interior) is also a frequent recommendation.