Thank you.
I thought about that; but my handwriting is not conducive to being small
and legible.

I don't think my cheap inkjet printer can print that small; at least that small
and be readable to my poor eyesight.
Larger stickers could help, but then the question of how/where do I put them, so they don't wrinkle and don't fall off and do stay visible from above, becomes the challenge.
Wow! That is incredibly creative, and ingenious! One could pack a lot of information into a simple system like that.
I failed to provide all the details though.
I am asking, because the calculator I use (EJuiceCalculator by
@HotRod19579) has the ability to attach a locator to each ingredient. I can look at the locator right on the calculator to see where I store my ingredient. But, this locator is restricted to alphanumeric characters like you find on a keyboard. I have no means to input a color code into this.
I am wanting to use a simple alphanumeric (e.g. 1-A-1, 2-R-23, etc.) type of designator for each ingredient. Which will correspond to box number, row, and position in row. This will allow me to sort by bottle size (minimizing wasted space), and disregard all name/manufacture order. Then, as I add new ingredients; I don't have to work them into the midst of existing ingredients. I simply add them to the end.
I am sorry for not being more specific to begin with. Thank you both for your ideas!