http://www.detailcity.org/forums/det...store-use.html
Here's one I found. Although I agree that special microfiber detergent is not necessary, I don't agree that just any laundry detergent will work.
It needs to be free of perfumes or dyes. No fabric softener or bleach. Dry with low heat seperately. Washing with other items could introduce lint or contaminate them.
Also I am in the habit washing my window towels seperately just to keep them from possible contamination from waxing or polishing towels.