I use a sharpie to mark the caps of dye bottles, on color dye I put a sample of the color on the cap. I have found that,since age 26, a magnifying desk lamp is a necessity, both in my Leatherwork, and Electronics.
As far as whippersnappers go, did you listen when You were young and immortal? They'll catch on eventually, I did,and that was quite the achievement in the development of the species.