We pur dirty nappies into little nappy sacks first, you can get them at Boots, 100 for 90p, you can get them at Tescos and well, everywhere it seems. They are little peach bags that smell like peach and really do block the smell. THEN we put them in our nappy wrapper (read:diaper genie). It does the trick. That and a few squirts of Febreeze every once in a while.