What risk scenario are you trying to protect against? You can wash hands etc to avoid bringing it home, but once it's in a household with young children there's fuck all you can do to stop them putting their hands in their mouths and all over everything.
Just to be clear, it's for domestic nappy changing hygiene when my kid is being a dick. Which right now is anytime I want them to do something.
DIY is only on the table due to the shortages.