Here is mine ( yes I had to revamp it after reading this post and getting another order in ! )
I only keep blanks, cleans, juices, parts, and currently
vaping ones in here. The whole front row only has one of each flavor ( sorted by strengths) that I am currently using ( LOL) once I finish them I put them in the needs topped or needs cleaned slots. I keep this on my desk in front of me so if I walk away I can snap it shut and I dont have to worry about my dogs. If I go anywhere I fill up my pcc and my carry case ( use the extra battery slot to hold a couple extra carts too hehe) and off I go! This case has 17 compartments and I am pretty sure once I get more juices I will have to get a another one just for those! I keep the brand new extras like the rest of my 5 packs of carts in my V4L kit box ( that way I don't get confused)
Also I bought nail art paints and they work great for writing a letter and number str on the cart! When I clean it I can just scratch the paint off or leave it on.