If you don't ever use something, you don't use it at all. If I simply said that I don't use it, there would remain some ambiguity as to what that means, i.e. it

If you don't ever use something, you don't use it at all. If I simply said that I don't use it, there would remain some ambiguity as to what that means, i.e. it could mean that I don't use it much. It seems like a natural use of the word to me, but I'm just one person.