anyone else a data nerd about their fragrances?

i'd love to hear what details you keep track of and how!

for me, some of the most useful data are:
- source (e.g., online platform or person's name)
- estimated fill level at time of acquisition (i often get partial bottles)
- cost/mL
- bottle's full volume
- size (sample, mini, travel, full)
- dispenser (atomizer, splash, dabber vial, applicator wand)
- date decanted
- date gifted or returned to someone
- date emptied

@fragrance