I think "coping strategies" encompass many things, including distraction. I would consider dishes and laundry to be a distraction. When you're not focusing too heavily on your mental anguish, you're actually kinda "coping."

I think that everyone needs to know some distraction techniques in order to cope well. I consider them "fillers" for the times where you can't use traditional coping mechanisms, like taking a walk, riding your bike, visiting people, etc.. Plus, when you actually accomplish something like you did, I think it helps a little vs not accomplishing anything at all by staying in bed all day.

Anyway, I hope you feel better soon.