I throw my clothes on the floor. I do feel bad about leaving it for my wife to pick up, but I don't think she gets too stressed about it so far as she picks them up once a week rather than daily.
(Which is an improvement on my bachelor days when clothes would be on the floor for 6-8 months at a time)
I did help her with cleaning the house thoroughly this weekend though, so I've assuaged my guilt.
WHAT! YOU ARE MARRIED? WHEN? HOW? WHEN????