I use my current NFC ring for basing stuff. I change the using nearly weekly.
Normaly I use it to unlock my phone. Thats nothing special.
I was at the Gamescom. There I linked my little youtube channel as a short cut in my ring. And when people asked me what kind of channel I have I was like: Ok I show you something cool. Thats the easiest way to see what I make. Do your smart phone have NFC? I show you something cool.
And so I showed some people my Channel. Everybody said that they liked the method to show someone they stuff in the internet.
But now I use my ring in my work. We have there a special room. Its locked with a NFC door. I talk a bit with my boss and now I can use my ring to unlock the door. Thats cool because I dont waste time to unlock the door with the chip on my keys :)
Here is a cool little picture of my ring ;)