Today marks my first week vaping, and I am really loving it. Part of the fun is exploring all the different flavors of juice out there. However, I don't think I can afford a tank for each of the juices out there, and I am sure that I will encounter some that I don't like. Is there an effective way of cleaning out the tank of old flavor, so that I can try a new one? I have been adding a new flavor that I think will go with the one in the tank and enjoying the transition between flavors, but I can imagine that some will just not blend that way. Dripping might be the way to go, but it looks like a lot of fuss. Any thoughts on this?