What is the best storage for cartridges?

Humidor is the one and only choice.
Looks nice too and there is a wide selection of styles, decor and design.

K5
For me and my twenty odd cartridge/headshell collection, the rare and beautiful Fidelity Research K5 cartridge cases are the only way to go.
And if you're very very lucky.........you may even find the rarest K10 cartridge case? :^)

Dear all,
many thanks for these helpful hints! Humidor - yes. booked!
what about light? carts seem to like dark places, do you agree?

best & fun only

Natural lght (heat) just accelerates the drying out process.

Is a humidor really the best storage vessel? I would opt for something completely airtight. The most obvious enemy of a cartridge is airborne pollutants, such as ozone. Ozone attacks the rubber components of the cartridge suspension making them brittle.