This seems like a pretty simple question, but it baffles me for some reason. How do I switch flavors in my clearomizer without wasting any juice? I know I could just put the new flavor on top, but I've found sometimes they mix and usually the result isn't very good. Then I'm stuck for some time with some weird concoction. I've just dumped the last bit a few times, but I hate doing that.. it feels like a waste. Just curious.. thx