I usually carry two clearomizers with me throught the day, one with tobacco for when I have the craving, and another with what ever flavor i happen to be using that day. The thing is that i normally wash out the clearomizer with the flavored juice every day or every other day to change flavors but I usually only clean the tobacco clearo about ones a week cus I just keep filling it up when it gets low. Over the past few days I have been getting an increasing burnt flavor in the tobacco clearo. Has it burnt out? Did it reach the end of its life? I have had for about 2 weeks and don't really burn it that often since I change between clearos and probably go through about 1-1 1/2 MLs a day. So is it alright to just keep the juice in there until its finished or should I take it out and clean the clearo more often?