I clean my house, cars, etc as well. My wife does the laundry and a little dusting. It truly is from my JW up-bringing. I also can't stand to see things out of order. It's a form of OCD, I have no doubt about it.
As for your wife hand washing the clothes before she puts them into the washing machine, well that's a whole other level of "sick". She has an extreme form of OCD, and you should seek therapy and treatment for her immediately. Constant 24/7 cleaning like that (not merely picking up around the house) is also symptom of extreme OCD behaviour. Seek out help for her ASAP.