Washable Nappy Demo. Information session on how to use modern cloth nappies, how much money you save and the difference between different brands and styles. Disposable nappies are a single use plastic and each baby will use between 4000 – 6000 nappies. Switching to washable nappies is actually very easy and will save parents £100s. Juliet has been running her company for 12 years and has a wealth of experience.