Here is something to think about.
I have been slowly over the years been putting tags on my personal items that are collector items or antiques.
The reason is if something should happen to me and someone goes through all my stuff and would toss out items that may look like junk but are really worth a lot on E bay and many collectors would like to have them, they would know.

This happens more than you might think.
A little advance planning I guess.

Great idea.  I have also thought about doing the same thing, especially to the lights.

Funny, as I age, I tape detailed notes on boxes or undersides of nearly every lamp, ballast, or fixture I have, just for MYSELF. Now the thought arises for me to write legible & sensible for others.