From Martin Luther:
“O God, because I am certain that thou hast created me as a man and hast from my body begotten this child, I also know for a certainty that it meets with thy perfect pleasure. I confess to thee that I am not worthy to rock the little babe or wash its diapers, or to be entrusted with the care of the child and its mother. How is it that I, without any merit, have come to this distinction of being certain that I am serving thy creature and thy most precious will? 0 how gladly will I do so, though the duties should be even more insignificant and despised. Neither frost nor heat, neither drudgery nor labour, will distress or dissuade me, for I am certain that it is thus pleasing in thy sight."
I need to confess that I have yet to view diapers quite this way. But maybe having a bit more of this mindset might help?