I usually get 3-4 days (sometimes more) from each cart but I do fill every two hours or so. One special cart lasted me two weeks, but that was a blank cart. It was awesome!
Can't put an exact figure on them, as I vape 3-4 different flavored/strength carts on fresh batteries throughout the day.
I put the half used cartos in a separate red removal bin that used to serve as a tool box that I was ready to donate to Good until I realized that would be perfect to separate the carts and other
vaping materials.
I put ready to be filled in one bin, the ones that are half filled carts in another, caps and o rings in another with my Taryn twirl bag along with my nut picker which takes the caps and o rings out simultaneously.
These bins are also stackable, so it makes it neat and organized.
I also bought a sewing bin at Walmart that holds some of my new carts I want to try; the others are in another very large compartmental sewing box.
I also have a three-tiered lazy suzan that was originally used for makeup that I use for the juices I'm currently using, and a tier section for my syringes and other
vaping tools. There's also a tier for the juices I'm experimenting with.
I keep my juices for long term storage in a closed dark cabinet under the open top 3 shelves, and fortunately, the A/C vent is directed right on the entire cabinet with everything in one place.
The only other thing I must do is transfer the juices from their plastic bottles into amber glass bottles for long term storage.