In my country you can pay bills using either BTC, ETH ad BCH. Your earnings can be used as a payment equivalent to your billing balance plus rebate. This is such a useful application and I can do freely anything about it. You can also but load, or pay merchants like credit cards all using your crypto balance.
what country are you talking about? Venezuela?
Doesn't matter which country he's talking about there are services from different countries that lets you pay your bills and do more convenient things with crypto. You can look this up on google and maybe there's one in your country (if it's not illegal).
If you're looking for a specific item you can use
spendabit they have a list of stores that accepts Bitcoin kind of similar to bitify.
If amazon accepts cryptocurrency, that is a great change in online selling market. Many projects had already tried to compete with amazon and ebay but they failed. Some also are just scamming the investors. Just like the old ICO that I joined last year. As of now, I never seen any platform that can buy goods using bitcoin.