D.B.
Ditto Riley's answer... with peepee diapers i got good enough at changing that there really wasn't any reason to bother washing hands afterwards since i didn't touch anything that was "contaminated" - might have used wet wipes to clean my hands afterwards, but it all went into a doggy poop bag to trash later.
and yes poopy diapers... just messy... very very rarely is there anything easy about one of those, lol!