I'm in the process of collecting the chemicals, equipment and tools that I'll need when I start my mobile detailing business in March. I've already collected all the MF, 70, and waffleweave, 12, towels to get me started. Those will cover my exterior needs. What I'm not sure on is how many towels I'll need for the interior. I bought 20 hand and 4 bath white cotton towels so far. I'm wondering if it would be a good idea to get some dark colored hand towels to use when cleaning the front door jams in the hinge area or maybe just some regular shop towels for those greasy areas. Since all the stores are having their big White Sale, this is the best time to finish stocking up.