I usually have anywhere from 4 to 10 wet cartos, all with different juices, on hand at all times. The cartos that I'm not vaping I will seal up with the soft tip and the 2 condoms (top and bottom) then I put each sealed carto into separate small plastic zip lock baggies which I label with the juice flavor and sometimes the ohms. I can then stand them up in a box with the battery end down. This way I can easily thumb through them to find the flavor that I'm looking for. I do clean some of them once in a while but I'm not really into the cleaning thing that much right now. I usually just get new cartos when needed. So I'm curious, how do other vapers keep their "in use" cartos, tanks, or clearomizers? How many do you keep wet at one time?