My brother of all people gave me this tip before I had my kid. Put some vaseline on the diaper so that when he poops, it won't stick to his bum. I gave it a try, and it worked! Sometimes I get lazy and don't put the vaseline on, only to be punished later when I have to srub his butt with a babywipe to make sure the dried poop comes off.

Pampers or Huggies should come up with a 'non-stick' diaper...not only does the poop not stick, but also moisturizes the bum. Sounds marketable right?