Getting ready for the arrival of baby #2, and I need to prep some diapers I've picked up used over the past few months... I have about 10 Kissaluvs fitteds and a half dozen prefolds, both bleached and unbleached. I'd like to be sure that I'm not starting out with detergent leftover from previous owners. Everything looks clean, so I guess I'm not worried about that, but more so that I will be putting unknown detergent residues on my new baby. Would you recommend just stripping them? (Wash over and over in HOT water until there are no more suds?) Should I keep the Kissaluvs separate from the prefolds? Thanks for your insights!