Detergent is optional, but it sometimes helps. https://www.schneier.com/blog/archives/2013/02/tide_becomes_dr.html https://www.schneier.com/blog/archives/2013/

Detergent is optional, but it sometimes helps. https://www.schneier.com/blog/archives/2013/02/tide_becomes_dr.html https://www.schneier.com/blog/archives/2013/02/tide_becomes_...