The lid on you baking soda a way to get it for “free” the lid to a grated Parmesan cheese container will fit on mason jars. So once you finish the container of cheese, wash the lid really well and then you can use it for a number of other things
I think that magic erasers are actually non-toxic! They are not an eco-friendly option, since they are not biodegradable and they do produce microplastics, but they don’t actually have any chemicals in them. They are just melamine foam, which is just a type plastic. As long as your kiddos don’t eat it, you should feel safe using them. :)