Blockchain and Cryptocurrency: A Practical Use

I see blockchain right now for very practical use for things like legal documents, maybe I mean, could be any kind of legal document. So you don't even have to worry about keeping this in a fireproof place or even just in your garage or basement or whatever. Now what happens with cryptocurrency and all these things, I just really sort of like to stay away from that whole topic. But there are uses for it and I think we will learn of new practical ways to use it.