Just wanted to add my experiences... my DD has been in child care for over a year (three days a week) and in cloth for most of that time. We use pockets (ready stuffed) and cloth wipes (chemical ones give her a rash). The staff know to put the poo in the toilet and roll up the nappy and wipes and put in the wet bag which they hang up out of reach of the children. No one has complained about it at all and I am not charged extra (a ridiculous idea if you ask me!). In fact, when I first discussed cloth with them they were incredibly encouraging! They are sick of seeing all the waste every day and when I showed them how easy they were to use they were all keen to try them out, and I've since sold a few small ones to a staff member who was pregnant.

Due to staff changes, or temporary staff coming in, we have "lost" two nappies - one purple Haute pocket and one Bumware (which was white so it may have looked similar to a disposable) - which I didn't notice until after wash day. But I figure with the money I've saved by not taking disposables into the centre, it's a small price to pay.

In regards to hygiene, I think that's a really poor excuse for a centre to say "no" to cloth. Disposing solid waste in a bin is worse than the above method with cloth - the waste goes in the toilet where it's supposed to go! Left in a bin, it is creating a nice little environment for bacteria and viruses. Changing nappies is the same - sometimes you get poo on your hands with sposies or cloth use, so you just have to wash your hands afterwards. Storing the dirty nappies is also easy and remember it's the parents who empty the wet bags or nappy buckets, not the staff.
If I came across a centre that said no to cloth, I'd be going somewhere else.