@DancingHeretik , I don't know. It is just how I started. I do write a lot of notes with a recipe having it's own sheet. I did learn way back how to link cells and write basic scripts. I imagine that recipe book apps are further developed and, may be, better.
I can't track juice levels in my stock. I do note the amount I have as I use them. I add them to the "to buy more" list, which is really the last step in my mixing routine. Order to make sure the next time needs are covered.
Linking and writing basic scripts is not to hard, kinda just part of my vaping hobby.
Also, of note, apps tend to give away info to nefarious places. My work affects what I do personally, so I am not very on-line connected as far as apps or Facebook, etc.
I just don't want the bad people to know that I like to vape Frooty Loops and Milk. I could be blackmailed.
A whole lot of