I tend to carry 2-4 flavors on me, depending on the situation. I usually switch it up a bit more while I'm having drinks.
Ok so I've had this thing for a week and I can see that I want to change flavors somewhat often. Problem is I only have two and I have 3 tanks. I can see myself ending up with 6 tanks and several flavors in the end. How many flavors do you guys have that you use regularly? I'm just curious, I'm not going to buy 20 flavors because Bill or Susie(made up names) has that many. I just have noticed I have two tanks on me at all times and I switch back and forth. The flavor seems a lot fresher after a switch.