This atom thick stuff is described as sub atomic chicken wire. Question is what can the layman do with a fairly substantial lump of it. Well its light weight, so if we could weave it we could make light weight clothes from it.
It could be used as an ultra filter, but membrane separation has a lot more going for it.
We could use it in F1 cars as a lightweight body shell, as its apparently fairly sturdy.
But really all I’d be able to use it for might be a useless door stop or paper weight, a OxyProduct or a product that deliberately doesnt do what its supposed to.