large wet bag in the kitchen - hangs on washing basket - doesnt smell - but if they're soiled i tend to wash a load then or rinse/hose it off anyway. But i can now go a week between washes as its only night nappies.
without a utility room - it'll be the noise of the washing machine that may be more annoying which is why i got a quiet motor miele one last time
Ours stays in Oscar's room (that's where clara is currently changed) - he's never shown any interest in it. Once our loft is finished and Clara has her own room, the bucket will move in there next to the change table. When ds started nursery, the bucket moved into the downstairs loo since most nappies were coming straight from his bag.