I know how you feel and that is the reason I went cloth! Caleb was a shocker for pooing out of his clothes and I had many middle of the night bed and bub changes which had him screaming down the house while I cleaned up. The last straw was when one leaked all over me when I was feeding him!

If you don't want to use cloth nappies then perhaps you could get some covers which would help contain the poo in there a bit so it hopefully doesn't leak out. You still may have to wash covers but that's got to be better than everything else!