On threads like this, the usual 'bleeding heart' excuse for crib sheets is that they are a useful prop and aid for new, inexperienced singers. But I've noticed that many 'crib-sheeters' are no better performers 5 or 6 years after they started inflicting themselves on us - and they STILL use crib sheets! I've also noticed that the use of crib sheets, by one or two people, can actually serve to lower standards at singarounds - because then other idiots thinks they only have to supply themselves with a bundle of crib sheets in order to 'have a go'.