Hm...it usually ends it for me because it usually means that my body has regained the ability to maintain homeostasis.
I know. The Momentum is no match for the HD600 (well, no match in everything except for bass and isolation).
Water and soap (and a towel and sponge I had on hand). Then I let it dry for a bit. I didn't have any alcohol wipes on hand.
If anything, I need to clean my ears though.