Little more info
I prefer 100% Cotton Towels Large White Bath Size (only use Cannon or Fieldcrest name brands) for washing, drying and polishing. I don't like sponges natural or synthetic or any wash mits, since they all can scratch.
I prefer 100% Cotton Towels to dry the car. Chamois or the Absorber and especially the Water Blade are flat and could trap a piece of dirt and scratch the paint finish. Towels have nap and are much safer and forgiving. Even if it were to pickup a piece of dirt, the nap would cushion it.
Again Towels must be 100% Made in USA. Name Brand (Cannon or Fieldcrest Towels)
You must use only white. Not colored towels..... colored towels are not to be used because the dye leaves a chemical residue on the paint finish. Always wash your towels first before using. Use Liquid detergent and rinse twice.
When washing your towels. Only use Liquid detergent such as All or Tide, etc. Do not use Bleach, Powdered Detergents or any kind of fabric softner. They will leave a chemical residue on the towels which will transfer to your paint finish. Make sure to run rinse cycle twice to remove all detergent.
You should cut the selvages(borders) off the perimeter of the towels. This selvage contains nylon and polyester stitching that could possibly scratch your paint finish. The towels will fray a little once this is done. But it's better to play it safe.
Drying the towels on high heat will make them hold a static charge. I use the regular heat setting and remove them a little damp and let them air dry. You can fluff the towel real good when it's dry to make it softer.
As the towels get older they will lose there nap and absorbency and will have to be replaced.
Where to buy towels........
Cannon & Fieldcrest make a lower quality version of their towels for K-Mart, Walmart and other big discount chains. These towels say 100% Cotton but that is not, totally true. The nap is 100% cotton but the backing material has polyester blend in it. So if you press a little to hard on the towel you can get some fine scratches or swirls. The point I'm trying to make is if a Cannon or Fieldcrest towel is selling in a discount store for $6.00 or less (approximately) it is not the good stuff. I buy all my Cannon & Fieldcrest towels in the Bath & Linen shops in the bigger stores in the mall. I pay anywhere from $10 to $20 per towel.
Hope this helps.-Ed