I do things a lot like you, Z.
I have separate jars for different crop types and purposes. One for ethnos, one for Capsicums, two for food crops, and one for long term backups.
As its important to let the jars warm up fully before opening I figure these crop-type jars reduce needless warmth exposure to seeds I dont even need when I take a jar out.
My reason for two food crop jars is to have one jar for more immediate use and one for stockpiles of seed I plan to make last 5+ years. For instance many biennial vegetables loose their vigor if grown from seeds from just a few plants generation after generation so I'll let kale or cabbage or something make seed and try to make that seed reserve last ten years before growing another seed crop from them. That way the blood lines should still have reasonable vigor when I'm 80
My long term backup is a kliner jar with a liner of cardboard inside to insulate and block light, the bottom inch is indicating desiccant (found in hobby shops in the flower drying gear area). When I get a new crop of orthodox seed plants I put some seeds in a 1 1/4" x 1" zip bag, prop it open with a dime, and desiccate it for a few days. These ultra-dry seed packs get put in the long term seed desiccator jar in the fridge. Ultra-drying may kill a fraction of some seed types, even of the orthodox type, but the remaining viable seeds will keep being viable for a VERY long time. It serves as a reservoir for me to retrieve genetics from 10, 20, or 40 years down the line. A rather informative paper on the subject of long term seed preservation can be viewed
[here]To avoid opening the jars too often I'll often keep a seed pack in my larder (coolest room in the house where I store food) for a week or two waiting for another reason to take out a jar.