Apart from using cryptocurrencies for the purpose of trading, investing and saving, I personally feel it can be used for other huge number of uses as well, many of which might surprise you a little but lets have a look:
Digital Publishing
De-corrupting charities
Travel sector
Education
Fund-raising
Augmented Reality
Ethical business practices
Wealth Management
Retail industry
Gaming industry
In future, it wont be wrong if I say that every industry would be run by the blockchain technology alone. Having said that, there will be a dire need for
cryptocurrency exchange development so that everything can be streamlined and that the businesses generate huge revenue out of their crypto businesses.