I used to put a shot glass of distilled water in my desktop along with the socks of beads when the forced air heat kicked on for the year. My coolers sealed so well (and I got into them far less frequently) that no additional steps were required there beyond the beads.
My Staebell cabinet has active humidification, which is the bomb. I do have to add distilled water slightly more often with the heat on, but it maintains the RH very accurately. I still have my sacks of beads in the cabinet as a little "ballast" for the RH.
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