I think disposable nappies are very unhygenic, having just returned from a holiday complex where I witnessed parents putting rolled up used nappies outside their chalets, only sometimes in a bag. Even some of the litter bins were full of them. The satisfying thing about using terry nappies, is that when I change a dirty one, the poo and liners go straight down the loo where it is supposed to go, and not into a landfill site, the thought of which makes me crynge! I wonder how many people using disposables scrape the poo down the loo first? I suppose it's possible to use a liner with a disposable nappy, but I don't know anyone who does, it's never mentioned, and the manufacturer's don't suggest it.