Great video! I am so glad there is another girl doing videos since Elle won't do it lol

Good to have you around Rita!
My suggestions... someone started a
thread on dulling the needle which I can't find now... Can be done with a metal file or of the point is fine enough you can use a metal nail file. I just cut mine off (the point) with wire cutters but now it is sharp in 2 spots on either side so that did not work out great.
Also... as far as labelling pre-filled carts.. I use ziplock baggies and label the bags as to what flavor those carts are... you could also label the pillbox days as diff flavors instead of days... but since u are mixing with flavoring... you may have too many flavors for that
Edit: they also have colored metallic paint pens at the crafts store.... if you wanted to set up a "code" sheet with each color and what flavor it represents.... you could just put a dot on each cart with what color that flavor corresponds to... they would last until you used the cart but should wash or scratch off of plastic when you wanted to change them.