I have 2 unrelated questions. First, I got some of that blue filler for the cartridges and was wondering just what do you wash it with? I'd like to wash it before I use it. Second, I'm looking for a case for my Joye 510 that would hold 2 batteries, an atomizer or 2, 2 carts and a 3ml bottle of juice. Does one exist? Been looking around and can't find any... Thanks for all of your help. 13 days without an analog, yeah!!!