I was taught to mark my wire solder similar to your method:
#70, a double kink |___
#65, a single kink____
#60, a loop ___O_____________
#56, a double loop ___O_O___________
#45 (brass-colored), the end doubled on itself, with a single kink
#30 (brass-colored), the end doubled on itself, with a single loop
Sheet solder kept in labeled film canisters, some chipped, some
strips, some rolled. Except for #75, which I use so much of, I just
keep it in a big strip in my bench drawer, marked #75 with a carbide
tip on both sides, all over.
Granulated solder in marked glass vials, which can have paste flux
added as needed, for the amount needed.
As a general note of interest, silver solders are denoted as #75,
#70, etc., according to the silver content in their composition, e.g.
a #75 contains 75% silver, a #70 contains 70% silver. This is less
confusing than trying to figure out extra hard, hard, medium, easy,
extra easy, super easy, and extra super easy
K.P. in WY