I got a few devices, at least one always has a 0 nic juice in it, switch back and forth all day, and I have been getting creative and mixing flavors... tried some meh strawberry in thick vanilla custard I was getting bored of, that was good, mixed blood orange with vanilla... nice for a change, bland green apple and some icky caramel turned pretty interesting when mixed. I was making myself sick from too much nicotine when I first started out, ordering lower juices now at 6, 11 and 0 nic levels. I got to the point I don't care, surprise me. so I got a huge variety of flavors and nic levels on my shelf right now.