Mud, grass and horse $hi! as well or get most of the crap off first? Not sure how the Mrs would view filling the washing machine with loads of crud! And If I applied rule 5 to this I would more then likely end up with my bollx on a plate for tea!
Just got back from a wet/dirty ride and do the same as neenaw, hose the shoes while I'm hoseing the rest of my bike/kit then stuff em with newspaper and put them under the radiator in the kitchen